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ChargesCharges
Electrons Electrons
P+n
nucleus
e-
Source of Electrons(Force) Source of Electrons(Force)
Matter Weight - SpaceMatter Weight - Space
Solid Liquid Gas Plasma
AtomsAtoms
Pn
nucleus
e-
valenceshell
AtomsAtoms
Atomic Number ndash Number of Protons
Atomic Weight ndash Number of Protons plus Neutrons
Number of Protons EQUALS Electrons in a neutral atom
IonizationIonization
The process where an atom gains or loses an electron
NaNa++ClCl--Na ndash Positive IonCl ndash Negative Ion
Charges (q) Charges (q)
Like Charges (++ - -)Like Charges (++ - -)
q- q-
q+ q+Repel
Charges (q) Charges (q)
Un-Like Charges (+ -)Un-Like Charges (+ -)
q+ q-Attract
Coulombrsquos LawCoulombrsquos Law
Coulomb (C)Coulomb (C)
The quantity of charge The quantity of charge on an abjecton an abject
1C = 625 x 101C = 625 x 101818 e e--
q-
Coulombrsquos LawCoulombrsquos Law
q1 q2
Coulombrsquos LawCoulombrsquos Law
What does the force What does the force depend ondepend on
q1 q2
Coulombrsquos LawCoulombrsquos Law
1The charge on q1The charge on q11 and q and q22
2The distance (d)2The distance (d)
d
q-
d d2
q1 q2
Mathematical Model for Mathematical Model for Coulombrsquos Law Force (F)Coulombrsquos Law Force (F)
d
F infinF infin q1q2 q1q2
F infinF infin 1d 1d22
q1 q2d
F =F =
qq11qq22
dd22KK
K = 90 X 10K = 90 X 1099 N Nmm22CC22
q1 q2d=3cm
d = 3cm = 3x10d = 3cm = 3x10-2-2mmK = 90 X 10K = 90 X 1099 N Nmm22CC22
qq11= +6= +6μμC = +6x10C = +6x10-6-6CCqq22= +3= +3μμC = +6x10C = +6x10-6-6C C
What is the force on qWhat is the force on q22
F =F =
(3X10(3X10-2-2m)m)22
9X109X1099NNmm22CC22(6X10(6X10-6-6C)(6X10C)(6X10-6-6C)C)
qq11qq22
dd22
KK
F =F = 18X1018X1022NN
q1 q2
Electric FieldsElectric Fields
Think of gravity or Think of gravity or gravitational field to gravitational field to
understand electric fieldsunderstand electric fields
Electric Fields Electric Fields vs vs GravityGravity
gg
Electric Electric FieldsFields
EE
neutralneutral neutralneutral
++++++++++++++++++++
- - - - - - - - - - - - - - - - - - - -
ElectricElectric Fields Fields
EE
++
++
++++++++++++++++++++
- - - - - - - - - - - - - - - - - - - -
Electric Electric FieldsFields
EE
--
--
++++++++++++++++++++
- - - - - - - - - - - - - - - - - - - -
Electric FieldsElectric Fields
A force field due to electric A force field due to electric chargescharges
EE
A force on a charge due to A force on a charge due to another chageanother chage
Electric Field Point ChargeElectric Field Point Charge
E =E = kqkqrr22
rr
Force on a charge lsquoqrsquo in an Force on a charge lsquoqrsquo in an Electric FieldElectric Field
QQqq
E =E = FFqq
E =E = FFqq
E =E = NewtonNewtonCoulombCoulomb
E =E = NNCC
Energy and WorkEnergy and Work
Energy and WorkEnergy and Work
++ --
It takes work to move It takes work to move the ldquo-rdquo chargethe ldquo-rdquo charge
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
++
qrsquoqrsquo
ΔΔV =V =
Work on Work on qrsquoqrsquo
qrsquoqrsquo
JoulJouleeCoulomCoulom
bb=== volt= volt
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
++
qrsquoqrsquo
ΔΔV = VV = VBB - V - VAA
VVAA VVBB
ldquoldquoPotential DifferencerdquoPotential DifferencerdquoVoltageVoltage
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
ΔΔV V = = Fd Fd
q q ΔΔV V = = Eqd Eqd
q q
E = E = F F q q
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
ΔΔV V = = Ed Ed
Example Example Two parallel plates are given Two parallel plates are given opposite charges A opposite charges A
voltmeter measures the voltmeter measures the electric potental differnece electric potental differnece to be 60V The plates are to be 60V The plates are 3ocm apart What is the 3ocm apart What is the magnitude of the electric magnitude of the electric
field between them field between them
- - - - - - - - - - - - - - - - - - - -
++++++++ ++++++++++++
EΔV
d
ΔV=600V D=0030m
ΔΔV V = = Ed Ed
= E = E ΔΔVVd d
= E = E
60V60V003003m m
20002000J(mJ(mmiddotC)= E middotC)= E
2000 2000 NNC = E C = E
CurrentCurrent
Flow of chargeFlow of charge
Charge - Coulomb(C) Charge - Coulomb(C) 624 X 10624 X 101818 electrons electrons
e ee e ee e e e e e eeee e
Leyden JarLeyden Jar
ConductorsConductors
Leyden JarLeyden Jar
++++
++++
++++------------ ----
--------
++++ ++++++++
------
CapacitorCapacitor
A capacitor is a passive electronic component that stores energy in the form of an electrostatic field
CapacitorCapacitor
Metal Plates
Insulating MaterialDielectric
CapacitorCapacitor
-+e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
CapacitorCapacitor
-- ---- -- -- ---- --
++++++++ ++++++++
CopperCopperZincZinc
--
CurrentCurrent
e ee e ee e e e e e eeee e
Number of electrons Number of electrons passing a point in a passing a point in a secondsecond
CurrentCurrent
Symbol - Symbol - II
Unit ndash Unit ndash Ampere (Amps)Ampere (Amps)
Amperes - Amperes - AA
ForceForce
e ee e ee e e e e e eeee e
VoltageVoltage
Potential DifferencePotential Difference
Electromotive Force (EMF)Electromotive Force (EMF)
VoltageVoltage
Symbol - Symbol - VV
Unit ndash Unit ndash VoltVolt
Volt - Volt - VV
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
High ResistanceHigh ResistanceInsulatorInsulator
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
Low ResistanceLow ResistanceConductorConductor
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
High and Low ResistanceHigh and Low ResistanceSemiConductorSemiConductor
ResistanceResistance
Symbol - Symbol - RR
Unit ndash Unit ndash OhmOhm
Ohm - Ohm - ΩΩ
Putting it all TogetherPutting it all Together
LoadSource
Path
Homework 1-1Homework 1-1
WorksheetWorksheetDue 9902Due 9902Test 9902Test 9902
Electrons Electrons
P+n
nucleus
e-
Source of Electrons(Force) Source of Electrons(Force)
Matter Weight - SpaceMatter Weight - Space
Solid Liquid Gas Plasma
AtomsAtoms
Pn
nucleus
e-
valenceshell
AtomsAtoms
Atomic Number ndash Number of Protons
Atomic Weight ndash Number of Protons plus Neutrons
Number of Protons EQUALS Electrons in a neutral atom
IonizationIonization
The process where an atom gains or loses an electron
NaNa++ClCl--Na ndash Positive IonCl ndash Negative Ion
Charges (q) Charges (q)
Like Charges (++ - -)Like Charges (++ - -)
q- q-
q+ q+Repel
Charges (q) Charges (q)
Un-Like Charges (+ -)Un-Like Charges (+ -)
q+ q-Attract
Coulombrsquos LawCoulombrsquos Law
Coulomb (C)Coulomb (C)
The quantity of charge The quantity of charge on an abjecton an abject
1C = 625 x 101C = 625 x 101818 e e--
q-
Coulombrsquos LawCoulombrsquos Law
q1 q2
Coulombrsquos LawCoulombrsquos Law
What does the force What does the force depend ondepend on
q1 q2
Coulombrsquos LawCoulombrsquos Law
1The charge on q1The charge on q11 and q and q22
2The distance (d)2The distance (d)
d
q-
d d2
q1 q2
Mathematical Model for Mathematical Model for Coulombrsquos Law Force (F)Coulombrsquos Law Force (F)
d
F infinF infin q1q2 q1q2
F infinF infin 1d 1d22
q1 q2d
F =F =
qq11qq22
dd22KK
K = 90 X 10K = 90 X 1099 N Nmm22CC22
q1 q2d=3cm
d = 3cm = 3x10d = 3cm = 3x10-2-2mmK = 90 X 10K = 90 X 1099 N Nmm22CC22
qq11= +6= +6μμC = +6x10C = +6x10-6-6CCqq22= +3= +3μμC = +6x10C = +6x10-6-6C C
What is the force on qWhat is the force on q22
F =F =
(3X10(3X10-2-2m)m)22
9X109X1099NNmm22CC22(6X10(6X10-6-6C)(6X10C)(6X10-6-6C)C)
qq11qq22
dd22
KK
F =F = 18X1018X1022NN
q1 q2
Electric FieldsElectric Fields
Think of gravity or Think of gravity or gravitational field to gravitational field to
understand electric fieldsunderstand electric fields
Electric Fields Electric Fields vs vs GravityGravity
gg
Electric Electric FieldsFields
EE
neutralneutral neutralneutral
++++++++++++++++++++
- - - - - - - - - - - - - - - - - - - -
ElectricElectric Fields Fields
EE
++
++
++++++++++++++++++++
- - - - - - - - - - - - - - - - - - - -
Electric Electric FieldsFields
EE
--
--
++++++++++++++++++++
- - - - - - - - - - - - - - - - - - - -
Electric FieldsElectric Fields
A force field due to electric A force field due to electric chargescharges
EE
A force on a charge due to A force on a charge due to another chageanother chage
Electric Field Point ChargeElectric Field Point Charge
E =E = kqkqrr22
rr
Force on a charge lsquoqrsquo in an Force on a charge lsquoqrsquo in an Electric FieldElectric Field
QQqq
E =E = FFqq
E =E = FFqq
E =E = NewtonNewtonCoulombCoulomb
E =E = NNCC
Energy and WorkEnergy and Work
Energy and WorkEnergy and Work
++ --
It takes work to move It takes work to move the ldquo-rdquo chargethe ldquo-rdquo charge
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
++
qrsquoqrsquo
ΔΔV =V =
Work on Work on qrsquoqrsquo
qrsquoqrsquo
JoulJouleeCoulomCoulom
bb=== volt= volt
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
++
qrsquoqrsquo
ΔΔV = VV = VBB - V - VAA
VVAA VVBB
ldquoldquoPotential DifferencerdquoPotential DifferencerdquoVoltageVoltage
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
ΔΔV V = = Fd Fd
q q ΔΔV V = = Eqd Eqd
q q
E = E = F F q q
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
ΔΔV V = = Ed Ed
Example Example Two parallel plates are given Two parallel plates are given opposite charges A opposite charges A
voltmeter measures the voltmeter measures the electric potental differnece electric potental differnece to be 60V The plates are to be 60V The plates are 3ocm apart What is the 3ocm apart What is the magnitude of the electric magnitude of the electric
field between them field between them
- - - - - - - - - - - - - - - - - - - -
++++++++ ++++++++++++
EΔV
d
ΔV=600V D=0030m
ΔΔV V = = Ed Ed
= E = E ΔΔVVd d
= E = E
60V60V003003m m
20002000J(mJ(mmiddotC)= E middotC)= E
2000 2000 NNC = E C = E
CurrentCurrent
Flow of chargeFlow of charge
Charge - Coulomb(C) Charge - Coulomb(C) 624 X 10624 X 101818 electrons electrons
e ee e ee e e e e e eeee e
Leyden JarLeyden Jar
ConductorsConductors
Leyden JarLeyden Jar
++++
++++
++++------------ ----
--------
++++ ++++++++
------
CapacitorCapacitor
A capacitor is a passive electronic component that stores energy in the form of an electrostatic field
CapacitorCapacitor
Metal Plates
Insulating MaterialDielectric
CapacitorCapacitor
-+e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
CapacitorCapacitor
-- ---- -- -- ---- --
++++++++ ++++++++
CopperCopperZincZinc
--
CurrentCurrent
e ee e ee e e e e e eeee e
Number of electrons Number of electrons passing a point in a passing a point in a secondsecond
CurrentCurrent
Symbol - Symbol - II
Unit ndash Unit ndash Ampere (Amps)Ampere (Amps)
Amperes - Amperes - AA
ForceForce
e ee e ee e e e e e eeee e
VoltageVoltage
Potential DifferencePotential Difference
Electromotive Force (EMF)Electromotive Force (EMF)
VoltageVoltage
Symbol - Symbol - VV
Unit ndash Unit ndash VoltVolt
Volt - Volt - VV
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
High ResistanceHigh ResistanceInsulatorInsulator
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
Low ResistanceLow ResistanceConductorConductor
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
High and Low ResistanceHigh and Low ResistanceSemiConductorSemiConductor
ResistanceResistance
Symbol - Symbol - RR
Unit ndash Unit ndash OhmOhm
Ohm - Ohm - ΩΩ
Putting it all TogetherPutting it all Together
LoadSource
Path
Homework 1-1Homework 1-1
WorksheetWorksheetDue 9902Due 9902Test 9902Test 9902
Source of Electrons(Force) Source of Electrons(Force)
Matter Weight - SpaceMatter Weight - Space
Solid Liquid Gas Plasma
AtomsAtoms
Pn
nucleus
e-
valenceshell
AtomsAtoms
Atomic Number ndash Number of Protons
Atomic Weight ndash Number of Protons plus Neutrons
Number of Protons EQUALS Electrons in a neutral atom
IonizationIonization
The process where an atom gains or loses an electron
NaNa++ClCl--Na ndash Positive IonCl ndash Negative Ion
Charges (q) Charges (q)
Like Charges (++ - -)Like Charges (++ - -)
q- q-
q+ q+Repel
Charges (q) Charges (q)
Un-Like Charges (+ -)Un-Like Charges (+ -)
q+ q-Attract
Coulombrsquos LawCoulombrsquos Law
Coulomb (C)Coulomb (C)
The quantity of charge The quantity of charge on an abjecton an abject
1C = 625 x 101C = 625 x 101818 e e--
q-
Coulombrsquos LawCoulombrsquos Law
q1 q2
Coulombrsquos LawCoulombrsquos Law
What does the force What does the force depend ondepend on
q1 q2
Coulombrsquos LawCoulombrsquos Law
1The charge on q1The charge on q11 and q and q22
2The distance (d)2The distance (d)
d
q-
d d2
q1 q2
Mathematical Model for Mathematical Model for Coulombrsquos Law Force (F)Coulombrsquos Law Force (F)
d
F infinF infin q1q2 q1q2
F infinF infin 1d 1d22
q1 q2d
F =F =
qq11qq22
dd22KK
K = 90 X 10K = 90 X 1099 N Nmm22CC22
q1 q2d=3cm
d = 3cm = 3x10d = 3cm = 3x10-2-2mmK = 90 X 10K = 90 X 1099 N Nmm22CC22
qq11= +6= +6μμC = +6x10C = +6x10-6-6CCqq22= +3= +3μμC = +6x10C = +6x10-6-6C C
What is the force on qWhat is the force on q22
F =F =
(3X10(3X10-2-2m)m)22
9X109X1099NNmm22CC22(6X10(6X10-6-6C)(6X10C)(6X10-6-6C)C)
qq11qq22
dd22
KK
F =F = 18X1018X1022NN
q1 q2
Electric FieldsElectric Fields
Think of gravity or Think of gravity or gravitational field to gravitational field to
understand electric fieldsunderstand electric fields
Electric Fields Electric Fields vs vs GravityGravity
gg
Electric Electric FieldsFields
EE
neutralneutral neutralneutral
++++++++++++++++++++
- - - - - - - - - - - - - - - - - - - -
ElectricElectric Fields Fields
EE
++
++
++++++++++++++++++++
- - - - - - - - - - - - - - - - - - - -
Electric Electric FieldsFields
EE
--
--
++++++++++++++++++++
- - - - - - - - - - - - - - - - - - - -
Electric FieldsElectric Fields
A force field due to electric A force field due to electric chargescharges
EE
A force on a charge due to A force on a charge due to another chageanother chage
Electric Field Point ChargeElectric Field Point Charge
E =E = kqkqrr22
rr
Force on a charge lsquoqrsquo in an Force on a charge lsquoqrsquo in an Electric FieldElectric Field
QQqq
E =E = FFqq
E =E = FFqq
E =E = NewtonNewtonCoulombCoulomb
E =E = NNCC
Energy and WorkEnergy and Work
Energy and WorkEnergy and Work
++ --
It takes work to move It takes work to move the ldquo-rdquo chargethe ldquo-rdquo charge
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
++
qrsquoqrsquo
ΔΔV =V =
Work on Work on qrsquoqrsquo
qrsquoqrsquo
JoulJouleeCoulomCoulom
bb=== volt= volt
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
++
qrsquoqrsquo
ΔΔV = VV = VBB - V - VAA
VVAA VVBB
ldquoldquoPotential DifferencerdquoPotential DifferencerdquoVoltageVoltage
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
ΔΔV V = = Fd Fd
q q ΔΔV V = = Eqd Eqd
q q
E = E = F F q q
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
ΔΔV V = = Ed Ed
Example Example Two parallel plates are given Two parallel plates are given opposite charges A opposite charges A
voltmeter measures the voltmeter measures the electric potental differnece electric potental differnece to be 60V The plates are to be 60V The plates are 3ocm apart What is the 3ocm apart What is the magnitude of the electric magnitude of the electric
field between them field between them
- - - - - - - - - - - - - - - - - - - -
++++++++ ++++++++++++
EΔV
d
ΔV=600V D=0030m
ΔΔV V = = Ed Ed
= E = E ΔΔVVd d
= E = E
60V60V003003m m
20002000J(mJ(mmiddotC)= E middotC)= E
2000 2000 NNC = E C = E
CurrentCurrent
Flow of chargeFlow of charge
Charge - Coulomb(C) Charge - Coulomb(C) 624 X 10624 X 101818 electrons electrons
e ee e ee e e e e e eeee e
Leyden JarLeyden Jar
ConductorsConductors
Leyden JarLeyden Jar
++++
++++
++++------------ ----
--------
++++ ++++++++
------
CapacitorCapacitor
A capacitor is a passive electronic component that stores energy in the form of an electrostatic field
CapacitorCapacitor
Metal Plates
Insulating MaterialDielectric
CapacitorCapacitor
-+e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
CapacitorCapacitor
-- ---- -- -- ---- --
++++++++ ++++++++
CopperCopperZincZinc
--
CurrentCurrent
e ee e ee e e e e e eeee e
Number of electrons Number of electrons passing a point in a passing a point in a secondsecond
CurrentCurrent
Symbol - Symbol - II
Unit ndash Unit ndash Ampere (Amps)Ampere (Amps)
Amperes - Amperes - AA
ForceForce
e ee e ee e e e e e eeee e
VoltageVoltage
Potential DifferencePotential Difference
Electromotive Force (EMF)Electromotive Force (EMF)
VoltageVoltage
Symbol - Symbol - VV
Unit ndash Unit ndash VoltVolt
Volt - Volt - VV
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
High ResistanceHigh ResistanceInsulatorInsulator
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
Low ResistanceLow ResistanceConductorConductor
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
High and Low ResistanceHigh and Low ResistanceSemiConductorSemiConductor
ResistanceResistance
Symbol - Symbol - RR
Unit ndash Unit ndash OhmOhm
Ohm - Ohm - ΩΩ
Putting it all TogetherPutting it all Together
LoadSource
Path
Homework 1-1Homework 1-1
WorksheetWorksheetDue 9902Due 9902Test 9902Test 9902
Matter Weight - SpaceMatter Weight - Space
Solid Liquid Gas Plasma
AtomsAtoms
Pn
nucleus
e-
valenceshell
AtomsAtoms
Atomic Number ndash Number of Protons
Atomic Weight ndash Number of Protons plus Neutrons
Number of Protons EQUALS Electrons in a neutral atom
IonizationIonization
The process where an atom gains or loses an electron
NaNa++ClCl--Na ndash Positive IonCl ndash Negative Ion
Charges (q) Charges (q)
Like Charges (++ - -)Like Charges (++ - -)
q- q-
q+ q+Repel
Charges (q) Charges (q)
Un-Like Charges (+ -)Un-Like Charges (+ -)
q+ q-Attract
Coulombrsquos LawCoulombrsquos Law
Coulomb (C)Coulomb (C)
The quantity of charge The quantity of charge on an abjecton an abject
1C = 625 x 101C = 625 x 101818 e e--
q-
Coulombrsquos LawCoulombrsquos Law
q1 q2
Coulombrsquos LawCoulombrsquos Law
What does the force What does the force depend ondepend on
q1 q2
Coulombrsquos LawCoulombrsquos Law
1The charge on q1The charge on q11 and q and q22
2The distance (d)2The distance (d)
d
q-
d d2
q1 q2
Mathematical Model for Mathematical Model for Coulombrsquos Law Force (F)Coulombrsquos Law Force (F)
d
F infinF infin q1q2 q1q2
F infinF infin 1d 1d22
q1 q2d
F =F =
qq11qq22
dd22KK
K = 90 X 10K = 90 X 1099 N Nmm22CC22
q1 q2d=3cm
d = 3cm = 3x10d = 3cm = 3x10-2-2mmK = 90 X 10K = 90 X 1099 N Nmm22CC22
qq11= +6= +6μμC = +6x10C = +6x10-6-6CCqq22= +3= +3μμC = +6x10C = +6x10-6-6C C
What is the force on qWhat is the force on q22
F =F =
(3X10(3X10-2-2m)m)22
9X109X1099NNmm22CC22(6X10(6X10-6-6C)(6X10C)(6X10-6-6C)C)
qq11qq22
dd22
KK
F =F = 18X1018X1022NN
q1 q2
Electric FieldsElectric Fields
Think of gravity or Think of gravity or gravitational field to gravitational field to
understand electric fieldsunderstand electric fields
Electric Fields Electric Fields vs vs GravityGravity
gg
Electric Electric FieldsFields
EE
neutralneutral neutralneutral
++++++++++++++++++++
- - - - - - - - - - - - - - - - - - - -
ElectricElectric Fields Fields
EE
++
++
++++++++++++++++++++
- - - - - - - - - - - - - - - - - - - -
Electric Electric FieldsFields
EE
--
--
++++++++++++++++++++
- - - - - - - - - - - - - - - - - - - -
Electric FieldsElectric Fields
A force field due to electric A force field due to electric chargescharges
EE
A force on a charge due to A force on a charge due to another chageanother chage
Electric Field Point ChargeElectric Field Point Charge
E =E = kqkqrr22
rr
Force on a charge lsquoqrsquo in an Force on a charge lsquoqrsquo in an Electric FieldElectric Field
QQqq
E =E = FFqq
E =E = FFqq
E =E = NewtonNewtonCoulombCoulomb
E =E = NNCC
Energy and WorkEnergy and Work
Energy and WorkEnergy and Work
++ --
It takes work to move It takes work to move the ldquo-rdquo chargethe ldquo-rdquo charge
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
++
qrsquoqrsquo
ΔΔV =V =
Work on Work on qrsquoqrsquo
qrsquoqrsquo
JoulJouleeCoulomCoulom
bb=== volt= volt
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
++
qrsquoqrsquo
ΔΔV = VV = VBB - V - VAA
VVAA VVBB
ldquoldquoPotential DifferencerdquoPotential DifferencerdquoVoltageVoltage
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
ΔΔV V = = Fd Fd
q q ΔΔV V = = Eqd Eqd
q q
E = E = F F q q
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
ΔΔV V = = Ed Ed
Example Example Two parallel plates are given Two parallel plates are given opposite charges A opposite charges A
voltmeter measures the voltmeter measures the electric potental differnece electric potental differnece to be 60V The plates are to be 60V The plates are 3ocm apart What is the 3ocm apart What is the magnitude of the electric magnitude of the electric
field between them field between them
- - - - - - - - - - - - - - - - - - - -
++++++++ ++++++++++++
EΔV
d
ΔV=600V D=0030m
ΔΔV V = = Ed Ed
= E = E ΔΔVVd d
= E = E
60V60V003003m m
20002000J(mJ(mmiddotC)= E middotC)= E
2000 2000 NNC = E C = E
CurrentCurrent
Flow of chargeFlow of charge
Charge - Coulomb(C) Charge - Coulomb(C) 624 X 10624 X 101818 electrons electrons
e ee e ee e e e e e eeee e
Leyden JarLeyden Jar
ConductorsConductors
Leyden JarLeyden Jar
++++
++++
++++------------ ----
--------
++++ ++++++++
------
CapacitorCapacitor
A capacitor is a passive electronic component that stores energy in the form of an electrostatic field
CapacitorCapacitor
Metal Plates
Insulating MaterialDielectric
CapacitorCapacitor
-+e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
CapacitorCapacitor
-- ---- -- -- ---- --
++++++++ ++++++++
CopperCopperZincZinc
--
CurrentCurrent
e ee e ee e e e e e eeee e
Number of electrons Number of electrons passing a point in a passing a point in a secondsecond
CurrentCurrent
Symbol - Symbol - II
Unit ndash Unit ndash Ampere (Amps)Ampere (Amps)
Amperes - Amperes - AA
ForceForce
e ee e ee e e e e e eeee e
VoltageVoltage
Potential DifferencePotential Difference
Electromotive Force (EMF)Electromotive Force (EMF)
VoltageVoltage
Symbol - Symbol - VV
Unit ndash Unit ndash VoltVolt
Volt - Volt - VV
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
High ResistanceHigh ResistanceInsulatorInsulator
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
Low ResistanceLow ResistanceConductorConductor
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
High and Low ResistanceHigh and Low ResistanceSemiConductorSemiConductor
ResistanceResistance
Symbol - Symbol - RR
Unit ndash Unit ndash OhmOhm
Ohm - Ohm - ΩΩ
Putting it all TogetherPutting it all Together
LoadSource
Path
Homework 1-1Homework 1-1
WorksheetWorksheetDue 9902Due 9902Test 9902Test 9902
AtomsAtoms
Pn
nucleus
e-
valenceshell
AtomsAtoms
Atomic Number ndash Number of Protons
Atomic Weight ndash Number of Protons plus Neutrons
Number of Protons EQUALS Electrons in a neutral atom
IonizationIonization
The process where an atom gains or loses an electron
NaNa++ClCl--Na ndash Positive IonCl ndash Negative Ion
Charges (q) Charges (q)
Like Charges (++ - -)Like Charges (++ - -)
q- q-
q+ q+Repel
Charges (q) Charges (q)
Un-Like Charges (+ -)Un-Like Charges (+ -)
q+ q-Attract
Coulombrsquos LawCoulombrsquos Law
Coulomb (C)Coulomb (C)
The quantity of charge The quantity of charge on an abjecton an abject
1C = 625 x 101C = 625 x 101818 e e--
q-
Coulombrsquos LawCoulombrsquos Law
q1 q2
Coulombrsquos LawCoulombrsquos Law
What does the force What does the force depend ondepend on
q1 q2
Coulombrsquos LawCoulombrsquos Law
1The charge on q1The charge on q11 and q and q22
2The distance (d)2The distance (d)
d
q-
d d2
q1 q2
Mathematical Model for Mathematical Model for Coulombrsquos Law Force (F)Coulombrsquos Law Force (F)
d
F infinF infin q1q2 q1q2
F infinF infin 1d 1d22
q1 q2d
F =F =
qq11qq22
dd22KK
K = 90 X 10K = 90 X 1099 N Nmm22CC22
q1 q2d=3cm
d = 3cm = 3x10d = 3cm = 3x10-2-2mmK = 90 X 10K = 90 X 1099 N Nmm22CC22
qq11= +6= +6μμC = +6x10C = +6x10-6-6CCqq22= +3= +3μμC = +6x10C = +6x10-6-6C C
What is the force on qWhat is the force on q22
F =F =
(3X10(3X10-2-2m)m)22
9X109X1099NNmm22CC22(6X10(6X10-6-6C)(6X10C)(6X10-6-6C)C)
qq11qq22
dd22
KK
F =F = 18X1018X1022NN
q1 q2
Electric FieldsElectric Fields
Think of gravity or Think of gravity or gravitational field to gravitational field to
understand electric fieldsunderstand electric fields
Electric Fields Electric Fields vs vs GravityGravity
gg
Electric Electric FieldsFields
EE
neutralneutral neutralneutral
++++++++++++++++++++
- - - - - - - - - - - - - - - - - - - -
ElectricElectric Fields Fields
EE
++
++
++++++++++++++++++++
- - - - - - - - - - - - - - - - - - - -
Electric Electric FieldsFields
EE
--
--
++++++++++++++++++++
- - - - - - - - - - - - - - - - - - - -
Electric FieldsElectric Fields
A force field due to electric A force field due to electric chargescharges
EE
A force on a charge due to A force on a charge due to another chageanother chage
Electric Field Point ChargeElectric Field Point Charge
E =E = kqkqrr22
rr
Force on a charge lsquoqrsquo in an Force on a charge lsquoqrsquo in an Electric FieldElectric Field
QQqq
E =E = FFqq
E =E = FFqq
E =E = NewtonNewtonCoulombCoulomb
E =E = NNCC
Energy and WorkEnergy and Work
Energy and WorkEnergy and Work
++ --
It takes work to move It takes work to move the ldquo-rdquo chargethe ldquo-rdquo charge
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
++
qrsquoqrsquo
ΔΔV =V =
Work on Work on qrsquoqrsquo
qrsquoqrsquo
JoulJouleeCoulomCoulom
bb=== volt= volt
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
++
qrsquoqrsquo
ΔΔV = VV = VBB - V - VAA
VVAA VVBB
ldquoldquoPotential DifferencerdquoPotential DifferencerdquoVoltageVoltage
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
ΔΔV V = = Fd Fd
q q ΔΔV V = = Eqd Eqd
q q
E = E = F F q q
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
ΔΔV V = = Ed Ed
Example Example Two parallel plates are given Two parallel plates are given opposite charges A opposite charges A
voltmeter measures the voltmeter measures the electric potental differnece electric potental differnece to be 60V The plates are to be 60V The plates are 3ocm apart What is the 3ocm apart What is the magnitude of the electric magnitude of the electric
field between them field between them
- - - - - - - - - - - - - - - - - - - -
++++++++ ++++++++++++
EΔV
d
ΔV=600V D=0030m
ΔΔV V = = Ed Ed
= E = E ΔΔVVd d
= E = E
60V60V003003m m
20002000J(mJ(mmiddotC)= E middotC)= E
2000 2000 NNC = E C = E
CurrentCurrent
Flow of chargeFlow of charge
Charge - Coulomb(C) Charge - Coulomb(C) 624 X 10624 X 101818 electrons electrons
e ee e ee e e e e e eeee e
Leyden JarLeyden Jar
ConductorsConductors
Leyden JarLeyden Jar
++++
++++
++++------------ ----
--------
++++ ++++++++
------
CapacitorCapacitor
A capacitor is a passive electronic component that stores energy in the form of an electrostatic field
CapacitorCapacitor
Metal Plates
Insulating MaterialDielectric
CapacitorCapacitor
-+e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
CapacitorCapacitor
-- ---- -- -- ---- --
++++++++ ++++++++
CopperCopperZincZinc
--
CurrentCurrent
e ee e ee e e e e e eeee e
Number of electrons Number of electrons passing a point in a passing a point in a secondsecond
CurrentCurrent
Symbol - Symbol - II
Unit ndash Unit ndash Ampere (Amps)Ampere (Amps)
Amperes - Amperes - AA
ForceForce
e ee e ee e e e e e eeee e
VoltageVoltage
Potential DifferencePotential Difference
Electromotive Force (EMF)Electromotive Force (EMF)
VoltageVoltage
Symbol - Symbol - VV
Unit ndash Unit ndash VoltVolt
Volt - Volt - VV
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
High ResistanceHigh ResistanceInsulatorInsulator
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
Low ResistanceLow ResistanceConductorConductor
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
High and Low ResistanceHigh and Low ResistanceSemiConductorSemiConductor
ResistanceResistance
Symbol - Symbol - RR
Unit ndash Unit ndash OhmOhm
Ohm - Ohm - ΩΩ
Putting it all TogetherPutting it all Together
LoadSource
Path
Homework 1-1Homework 1-1
WorksheetWorksheetDue 9902Due 9902Test 9902Test 9902
AtomsAtoms
Atomic Number ndash Number of Protons
Atomic Weight ndash Number of Protons plus Neutrons
Number of Protons EQUALS Electrons in a neutral atom
IonizationIonization
The process where an atom gains or loses an electron
NaNa++ClCl--Na ndash Positive IonCl ndash Negative Ion
Charges (q) Charges (q)
Like Charges (++ - -)Like Charges (++ - -)
q- q-
q+ q+Repel
Charges (q) Charges (q)
Un-Like Charges (+ -)Un-Like Charges (+ -)
q+ q-Attract
Coulombrsquos LawCoulombrsquos Law
Coulomb (C)Coulomb (C)
The quantity of charge The quantity of charge on an abjecton an abject
1C = 625 x 101C = 625 x 101818 e e--
q-
Coulombrsquos LawCoulombrsquos Law
q1 q2
Coulombrsquos LawCoulombrsquos Law
What does the force What does the force depend ondepend on
q1 q2
Coulombrsquos LawCoulombrsquos Law
1The charge on q1The charge on q11 and q and q22
2The distance (d)2The distance (d)
d
q-
d d2
q1 q2
Mathematical Model for Mathematical Model for Coulombrsquos Law Force (F)Coulombrsquos Law Force (F)
d
F infinF infin q1q2 q1q2
F infinF infin 1d 1d22
q1 q2d
F =F =
qq11qq22
dd22KK
K = 90 X 10K = 90 X 1099 N Nmm22CC22
q1 q2d=3cm
d = 3cm = 3x10d = 3cm = 3x10-2-2mmK = 90 X 10K = 90 X 1099 N Nmm22CC22
qq11= +6= +6μμC = +6x10C = +6x10-6-6CCqq22= +3= +3μμC = +6x10C = +6x10-6-6C C
What is the force on qWhat is the force on q22
F =F =
(3X10(3X10-2-2m)m)22
9X109X1099NNmm22CC22(6X10(6X10-6-6C)(6X10C)(6X10-6-6C)C)
qq11qq22
dd22
KK
F =F = 18X1018X1022NN
q1 q2
Electric FieldsElectric Fields
Think of gravity or Think of gravity or gravitational field to gravitational field to
understand electric fieldsunderstand electric fields
Electric Fields Electric Fields vs vs GravityGravity
gg
Electric Electric FieldsFields
EE
neutralneutral neutralneutral
++++++++++++++++++++
- - - - - - - - - - - - - - - - - - - -
ElectricElectric Fields Fields
EE
++
++
++++++++++++++++++++
- - - - - - - - - - - - - - - - - - - -
Electric Electric FieldsFields
EE
--
--
++++++++++++++++++++
- - - - - - - - - - - - - - - - - - - -
Electric FieldsElectric Fields
A force field due to electric A force field due to electric chargescharges
EE
A force on a charge due to A force on a charge due to another chageanother chage
Electric Field Point ChargeElectric Field Point Charge
E =E = kqkqrr22
rr
Force on a charge lsquoqrsquo in an Force on a charge lsquoqrsquo in an Electric FieldElectric Field
QQqq
E =E = FFqq
E =E = FFqq
E =E = NewtonNewtonCoulombCoulomb
E =E = NNCC
Energy and WorkEnergy and Work
Energy and WorkEnergy and Work
++ --
It takes work to move It takes work to move the ldquo-rdquo chargethe ldquo-rdquo charge
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
++
qrsquoqrsquo
ΔΔV =V =
Work on Work on qrsquoqrsquo
qrsquoqrsquo
JoulJouleeCoulomCoulom
bb=== volt= volt
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
++
qrsquoqrsquo
ΔΔV = VV = VBB - V - VAA
VVAA VVBB
ldquoldquoPotential DifferencerdquoPotential DifferencerdquoVoltageVoltage
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
ΔΔV V = = Fd Fd
q q ΔΔV V = = Eqd Eqd
q q
E = E = F F q q
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
ΔΔV V = = Ed Ed
Example Example Two parallel plates are given Two parallel plates are given opposite charges A opposite charges A
voltmeter measures the voltmeter measures the electric potental differnece electric potental differnece to be 60V The plates are to be 60V The plates are 3ocm apart What is the 3ocm apart What is the magnitude of the electric magnitude of the electric
field between them field between them
- - - - - - - - - - - - - - - - - - - -
++++++++ ++++++++++++
EΔV
d
ΔV=600V D=0030m
ΔΔV V = = Ed Ed
= E = E ΔΔVVd d
= E = E
60V60V003003m m
20002000J(mJ(mmiddotC)= E middotC)= E
2000 2000 NNC = E C = E
CurrentCurrent
Flow of chargeFlow of charge
Charge - Coulomb(C) Charge - Coulomb(C) 624 X 10624 X 101818 electrons electrons
e ee e ee e e e e e eeee e
Leyden JarLeyden Jar
ConductorsConductors
Leyden JarLeyden Jar
++++
++++
++++------------ ----
--------
++++ ++++++++
------
CapacitorCapacitor
A capacitor is a passive electronic component that stores energy in the form of an electrostatic field
CapacitorCapacitor
Metal Plates
Insulating MaterialDielectric
CapacitorCapacitor
-+e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
CapacitorCapacitor
-- ---- -- -- ---- --
++++++++ ++++++++
CopperCopperZincZinc
--
CurrentCurrent
e ee e ee e e e e e eeee e
Number of electrons Number of electrons passing a point in a passing a point in a secondsecond
CurrentCurrent
Symbol - Symbol - II
Unit ndash Unit ndash Ampere (Amps)Ampere (Amps)
Amperes - Amperes - AA
ForceForce
e ee e ee e e e e e eeee e
VoltageVoltage
Potential DifferencePotential Difference
Electromotive Force (EMF)Electromotive Force (EMF)
VoltageVoltage
Symbol - Symbol - VV
Unit ndash Unit ndash VoltVolt
Volt - Volt - VV
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
High ResistanceHigh ResistanceInsulatorInsulator
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
Low ResistanceLow ResistanceConductorConductor
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
High and Low ResistanceHigh and Low ResistanceSemiConductorSemiConductor
ResistanceResistance
Symbol - Symbol - RR
Unit ndash Unit ndash OhmOhm
Ohm - Ohm - ΩΩ
Putting it all TogetherPutting it all Together
LoadSource
Path
Homework 1-1Homework 1-1
WorksheetWorksheetDue 9902Due 9902Test 9902Test 9902
IonizationIonization
The process where an atom gains or loses an electron
NaNa++ClCl--Na ndash Positive IonCl ndash Negative Ion
Charges (q) Charges (q)
Like Charges (++ - -)Like Charges (++ - -)
q- q-
q+ q+Repel
Charges (q) Charges (q)
Un-Like Charges (+ -)Un-Like Charges (+ -)
q+ q-Attract
Coulombrsquos LawCoulombrsquos Law
Coulomb (C)Coulomb (C)
The quantity of charge The quantity of charge on an abjecton an abject
1C = 625 x 101C = 625 x 101818 e e--
q-
Coulombrsquos LawCoulombrsquos Law
q1 q2
Coulombrsquos LawCoulombrsquos Law
What does the force What does the force depend ondepend on
q1 q2
Coulombrsquos LawCoulombrsquos Law
1The charge on q1The charge on q11 and q and q22
2The distance (d)2The distance (d)
d
q-
d d2
q1 q2
Mathematical Model for Mathematical Model for Coulombrsquos Law Force (F)Coulombrsquos Law Force (F)
d
F infinF infin q1q2 q1q2
F infinF infin 1d 1d22
q1 q2d
F =F =
qq11qq22
dd22KK
K = 90 X 10K = 90 X 1099 N Nmm22CC22
q1 q2d=3cm
d = 3cm = 3x10d = 3cm = 3x10-2-2mmK = 90 X 10K = 90 X 1099 N Nmm22CC22
qq11= +6= +6μμC = +6x10C = +6x10-6-6CCqq22= +3= +3μμC = +6x10C = +6x10-6-6C C
What is the force on qWhat is the force on q22
F =F =
(3X10(3X10-2-2m)m)22
9X109X1099NNmm22CC22(6X10(6X10-6-6C)(6X10C)(6X10-6-6C)C)
qq11qq22
dd22
KK
F =F = 18X1018X1022NN
q1 q2
Electric FieldsElectric Fields
Think of gravity or Think of gravity or gravitational field to gravitational field to
understand electric fieldsunderstand electric fields
Electric Fields Electric Fields vs vs GravityGravity
gg
Electric Electric FieldsFields
EE
neutralneutral neutralneutral
++++++++++++++++++++
- - - - - - - - - - - - - - - - - - - -
ElectricElectric Fields Fields
EE
++
++
++++++++++++++++++++
- - - - - - - - - - - - - - - - - - - -
Electric Electric FieldsFields
EE
--
--
++++++++++++++++++++
- - - - - - - - - - - - - - - - - - - -
Electric FieldsElectric Fields
A force field due to electric A force field due to electric chargescharges
EE
A force on a charge due to A force on a charge due to another chageanother chage
Electric Field Point ChargeElectric Field Point Charge
E =E = kqkqrr22
rr
Force on a charge lsquoqrsquo in an Force on a charge lsquoqrsquo in an Electric FieldElectric Field
QQqq
E =E = FFqq
E =E = FFqq
E =E = NewtonNewtonCoulombCoulomb
E =E = NNCC
Energy and WorkEnergy and Work
Energy and WorkEnergy and Work
++ --
It takes work to move It takes work to move the ldquo-rdquo chargethe ldquo-rdquo charge
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
++
qrsquoqrsquo
ΔΔV =V =
Work on Work on qrsquoqrsquo
qrsquoqrsquo
JoulJouleeCoulomCoulom
bb=== volt= volt
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
++
qrsquoqrsquo
ΔΔV = VV = VBB - V - VAA
VVAA VVBB
ldquoldquoPotential DifferencerdquoPotential DifferencerdquoVoltageVoltage
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
ΔΔV V = = Fd Fd
q q ΔΔV V = = Eqd Eqd
q q
E = E = F F q q
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
ΔΔV V = = Ed Ed
Example Example Two parallel plates are given Two parallel plates are given opposite charges A opposite charges A
voltmeter measures the voltmeter measures the electric potental differnece electric potental differnece to be 60V The plates are to be 60V The plates are 3ocm apart What is the 3ocm apart What is the magnitude of the electric magnitude of the electric
field between them field between them
- - - - - - - - - - - - - - - - - - - -
++++++++ ++++++++++++
EΔV
d
ΔV=600V D=0030m
ΔΔV V = = Ed Ed
= E = E ΔΔVVd d
= E = E
60V60V003003m m
20002000J(mJ(mmiddotC)= E middotC)= E
2000 2000 NNC = E C = E
CurrentCurrent
Flow of chargeFlow of charge
Charge - Coulomb(C) Charge - Coulomb(C) 624 X 10624 X 101818 electrons electrons
e ee e ee e e e e e eeee e
Leyden JarLeyden Jar
ConductorsConductors
Leyden JarLeyden Jar
++++
++++
++++------------ ----
--------
++++ ++++++++
------
CapacitorCapacitor
A capacitor is a passive electronic component that stores energy in the form of an electrostatic field
CapacitorCapacitor
Metal Plates
Insulating MaterialDielectric
CapacitorCapacitor
-+e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
CapacitorCapacitor
-- ---- -- -- ---- --
++++++++ ++++++++
CopperCopperZincZinc
--
CurrentCurrent
e ee e ee e e e e e eeee e
Number of electrons Number of electrons passing a point in a passing a point in a secondsecond
CurrentCurrent
Symbol - Symbol - II
Unit ndash Unit ndash Ampere (Amps)Ampere (Amps)
Amperes - Amperes - AA
ForceForce
e ee e ee e e e e e eeee e
VoltageVoltage
Potential DifferencePotential Difference
Electromotive Force (EMF)Electromotive Force (EMF)
VoltageVoltage
Symbol - Symbol - VV
Unit ndash Unit ndash VoltVolt
Volt - Volt - VV
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
High ResistanceHigh ResistanceInsulatorInsulator
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
Low ResistanceLow ResistanceConductorConductor
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
High and Low ResistanceHigh and Low ResistanceSemiConductorSemiConductor
ResistanceResistance
Symbol - Symbol - RR
Unit ndash Unit ndash OhmOhm
Ohm - Ohm - ΩΩ
Putting it all TogetherPutting it all Together
LoadSource
Path
Homework 1-1Homework 1-1
WorksheetWorksheetDue 9902Due 9902Test 9902Test 9902
Charges (q) Charges (q)
Like Charges (++ - -)Like Charges (++ - -)
q- q-
q+ q+Repel
Charges (q) Charges (q)
Un-Like Charges (+ -)Un-Like Charges (+ -)
q+ q-Attract
Coulombrsquos LawCoulombrsquos Law
Coulomb (C)Coulomb (C)
The quantity of charge The quantity of charge on an abjecton an abject
1C = 625 x 101C = 625 x 101818 e e--
q-
Coulombrsquos LawCoulombrsquos Law
q1 q2
Coulombrsquos LawCoulombrsquos Law
What does the force What does the force depend ondepend on
q1 q2
Coulombrsquos LawCoulombrsquos Law
1The charge on q1The charge on q11 and q and q22
2The distance (d)2The distance (d)
d
q-
d d2
q1 q2
Mathematical Model for Mathematical Model for Coulombrsquos Law Force (F)Coulombrsquos Law Force (F)
d
F infinF infin q1q2 q1q2
F infinF infin 1d 1d22
q1 q2d
F =F =
qq11qq22
dd22KK
K = 90 X 10K = 90 X 1099 N Nmm22CC22
q1 q2d=3cm
d = 3cm = 3x10d = 3cm = 3x10-2-2mmK = 90 X 10K = 90 X 1099 N Nmm22CC22
qq11= +6= +6μμC = +6x10C = +6x10-6-6CCqq22= +3= +3μμC = +6x10C = +6x10-6-6C C
What is the force on qWhat is the force on q22
F =F =
(3X10(3X10-2-2m)m)22
9X109X1099NNmm22CC22(6X10(6X10-6-6C)(6X10C)(6X10-6-6C)C)
qq11qq22
dd22
KK
F =F = 18X1018X1022NN
q1 q2
Electric FieldsElectric Fields
Think of gravity or Think of gravity or gravitational field to gravitational field to
understand electric fieldsunderstand electric fields
Electric Fields Electric Fields vs vs GravityGravity
gg
Electric Electric FieldsFields
EE
neutralneutral neutralneutral
++++++++++++++++++++
- - - - - - - - - - - - - - - - - - - -
ElectricElectric Fields Fields
EE
++
++
++++++++++++++++++++
- - - - - - - - - - - - - - - - - - - -
Electric Electric FieldsFields
EE
--
--
++++++++++++++++++++
- - - - - - - - - - - - - - - - - - - -
Electric FieldsElectric Fields
A force field due to electric A force field due to electric chargescharges
EE
A force on a charge due to A force on a charge due to another chageanother chage
Electric Field Point ChargeElectric Field Point Charge
E =E = kqkqrr22
rr
Force on a charge lsquoqrsquo in an Force on a charge lsquoqrsquo in an Electric FieldElectric Field
QQqq
E =E = FFqq
E =E = FFqq
E =E = NewtonNewtonCoulombCoulomb
E =E = NNCC
Energy and WorkEnergy and Work
Energy and WorkEnergy and Work
++ --
It takes work to move It takes work to move the ldquo-rdquo chargethe ldquo-rdquo charge
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
++
qrsquoqrsquo
ΔΔV =V =
Work on Work on qrsquoqrsquo
qrsquoqrsquo
JoulJouleeCoulomCoulom
bb=== volt= volt
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
++
qrsquoqrsquo
ΔΔV = VV = VBB - V - VAA
VVAA VVBB
ldquoldquoPotential DifferencerdquoPotential DifferencerdquoVoltageVoltage
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
ΔΔV V = = Fd Fd
q q ΔΔV V = = Eqd Eqd
q q
E = E = F F q q
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
ΔΔV V = = Ed Ed
Example Example Two parallel plates are given Two parallel plates are given opposite charges A opposite charges A
voltmeter measures the voltmeter measures the electric potental differnece electric potental differnece to be 60V The plates are to be 60V The plates are 3ocm apart What is the 3ocm apart What is the magnitude of the electric magnitude of the electric
field between them field between them
- - - - - - - - - - - - - - - - - - - -
++++++++ ++++++++++++
EΔV
d
ΔV=600V D=0030m
ΔΔV V = = Ed Ed
= E = E ΔΔVVd d
= E = E
60V60V003003m m
20002000J(mJ(mmiddotC)= E middotC)= E
2000 2000 NNC = E C = E
CurrentCurrent
Flow of chargeFlow of charge
Charge - Coulomb(C) Charge - Coulomb(C) 624 X 10624 X 101818 electrons electrons
e ee e ee e e e e e eeee e
Leyden JarLeyden Jar
ConductorsConductors
Leyden JarLeyden Jar
++++
++++
++++------------ ----
--------
++++ ++++++++
------
CapacitorCapacitor
A capacitor is a passive electronic component that stores energy in the form of an electrostatic field
CapacitorCapacitor
Metal Plates
Insulating MaterialDielectric
CapacitorCapacitor
-+e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
CapacitorCapacitor
-- ---- -- -- ---- --
++++++++ ++++++++
CopperCopperZincZinc
--
CurrentCurrent
e ee e ee e e e e e eeee e
Number of electrons Number of electrons passing a point in a passing a point in a secondsecond
CurrentCurrent
Symbol - Symbol - II
Unit ndash Unit ndash Ampere (Amps)Ampere (Amps)
Amperes - Amperes - AA
ForceForce
e ee e ee e e e e e eeee e
VoltageVoltage
Potential DifferencePotential Difference
Electromotive Force (EMF)Electromotive Force (EMF)
VoltageVoltage
Symbol - Symbol - VV
Unit ndash Unit ndash VoltVolt
Volt - Volt - VV
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
High ResistanceHigh ResistanceInsulatorInsulator
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
Low ResistanceLow ResistanceConductorConductor
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
High and Low ResistanceHigh and Low ResistanceSemiConductorSemiConductor
ResistanceResistance
Symbol - Symbol - RR
Unit ndash Unit ndash OhmOhm
Ohm - Ohm - ΩΩ
Putting it all TogetherPutting it all Together
LoadSource
Path
Homework 1-1Homework 1-1
WorksheetWorksheetDue 9902Due 9902Test 9902Test 9902
Charges (q) Charges (q)
Un-Like Charges (+ -)Un-Like Charges (+ -)
q+ q-Attract
Coulombrsquos LawCoulombrsquos Law
Coulomb (C)Coulomb (C)
The quantity of charge The quantity of charge on an abjecton an abject
1C = 625 x 101C = 625 x 101818 e e--
q-
Coulombrsquos LawCoulombrsquos Law
q1 q2
Coulombrsquos LawCoulombrsquos Law
What does the force What does the force depend ondepend on
q1 q2
Coulombrsquos LawCoulombrsquos Law
1The charge on q1The charge on q11 and q and q22
2The distance (d)2The distance (d)
d
q-
d d2
q1 q2
Mathematical Model for Mathematical Model for Coulombrsquos Law Force (F)Coulombrsquos Law Force (F)
d
F infinF infin q1q2 q1q2
F infinF infin 1d 1d22
q1 q2d
F =F =
qq11qq22
dd22KK
K = 90 X 10K = 90 X 1099 N Nmm22CC22
q1 q2d=3cm
d = 3cm = 3x10d = 3cm = 3x10-2-2mmK = 90 X 10K = 90 X 1099 N Nmm22CC22
qq11= +6= +6μμC = +6x10C = +6x10-6-6CCqq22= +3= +3μμC = +6x10C = +6x10-6-6C C
What is the force on qWhat is the force on q22
F =F =
(3X10(3X10-2-2m)m)22
9X109X1099NNmm22CC22(6X10(6X10-6-6C)(6X10C)(6X10-6-6C)C)
qq11qq22
dd22
KK
F =F = 18X1018X1022NN
q1 q2
Electric FieldsElectric Fields
Think of gravity or Think of gravity or gravitational field to gravitational field to
understand electric fieldsunderstand electric fields
Electric Fields Electric Fields vs vs GravityGravity
gg
Electric Electric FieldsFields
EE
neutralneutral neutralneutral
++++++++++++++++++++
- - - - - - - - - - - - - - - - - - - -
ElectricElectric Fields Fields
EE
++
++
++++++++++++++++++++
- - - - - - - - - - - - - - - - - - - -
Electric Electric FieldsFields
EE
--
--
++++++++++++++++++++
- - - - - - - - - - - - - - - - - - - -
Electric FieldsElectric Fields
A force field due to electric A force field due to electric chargescharges
EE
A force on a charge due to A force on a charge due to another chageanother chage
Electric Field Point ChargeElectric Field Point Charge
E =E = kqkqrr22
rr
Force on a charge lsquoqrsquo in an Force on a charge lsquoqrsquo in an Electric FieldElectric Field
QQqq
E =E = FFqq
E =E = FFqq
E =E = NewtonNewtonCoulombCoulomb
E =E = NNCC
Energy and WorkEnergy and Work
Energy and WorkEnergy and Work
++ --
It takes work to move It takes work to move the ldquo-rdquo chargethe ldquo-rdquo charge
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
++
qrsquoqrsquo
ΔΔV =V =
Work on Work on qrsquoqrsquo
qrsquoqrsquo
JoulJouleeCoulomCoulom
bb=== volt= volt
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
++
qrsquoqrsquo
ΔΔV = VV = VBB - V - VAA
VVAA VVBB
ldquoldquoPotential DifferencerdquoPotential DifferencerdquoVoltageVoltage
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
ΔΔV V = = Fd Fd
q q ΔΔV V = = Eqd Eqd
q q
E = E = F F q q
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
ΔΔV V = = Ed Ed
Example Example Two parallel plates are given Two parallel plates are given opposite charges A opposite charges A
voltmeter measures the voltmeter measures the electric potental differnece electric potental differnece to be 60V The plates are to be 60V The plates are 3ocm apart What is the 3ocm apart What is the magnitude of the electric magnitude of the electric
field between them field between them
- - - - - - - - - - - - - - - - - - - -
++++++++ ++++++++++++
EΔV
d
ΔV=600V D=0030m
ΔΔV V = = Ed Ed
= E = E ΔΔVVd d
= E = E
60V60V003003m m
20002000J(mJ(mmiddotC)= E middotC)= E
2000 2000 NNC = E C = E
CurrentCurrent
Flow of chargeFlow of charge
Charge - Coulomb(C) Charge - Coulomb(C) 624 X 10624 X 101818 electrons electrons
e ee e ee e e e e e eeee e
Leyden JarLeyden Jar
ConductorsConductors
Leyden JarLeyden Jar
++++
++++
++++------------ ----
--------
++++ ++++++++
------
CapacitorCapacitor
A capacitor is a passive electronic component that stores energy in the form of an electrostatic field
CapacitorCapacitor
Metal Plates
Insulating MaterialDielectric
CapacitorCapacitor
-+e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
CapacitorCapacitor
-- ---- -- -- ---- --
++++++++ ++++++++
CopperCopperZincZinc
--
CurrentCurrent
e ee e ee e e e e e eeee e
Number of electrons Number of electrons passing a point in a passing a point in a secondsecond
CurrentCurrent
Symbol - Symbol - II
Unit ndash Unit ndash Ampere (Amps)Ampere (Amps)
Amperes - Amperes - AA
ForceForce
e ee e ee e e e e e eeee e
VoltageVoltage
Potential DifferencePotential Difference
Electromotive Force (EMF)Electromotive Force (EMF)
VoltageVoltage
Symbol - Symbol - VV
Unit ndash Unit ndash VoltVolt
Volt - Volt - VV
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
High ResistanceHigh ResistanceInsulatorInsulator
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
Low ResistanceLow ResistanceConductorConductor
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
High and Low ResistanceHigh and Low ResistanceSemiConductorSemiConductor
ResistanceResistance
Symbol - Symbol - RR
Unit ndash Unit ndash OhmOhm
Ohm - Ohm - ΩΩ
Putting it all TogetherPutting it all Together
LoadSource
Path
Homework 1-1Homework 1-1
WorksheetWorksheetDue 9902Due 9902Test 9902Test 9902
Coulombrsquos LawCoulombrsquos Law
Coulomb (C)Coulomb (C)
The quantity of charge The quantity of charge on an abjecton an abject
1C = 625 x 101C = 625 x 101818 e e--
q-
Coulombrsquos LawCoulombrsquos Law
q1 q2
Coulombrsquos LawCoulombrsquos Law
What does the force What does the force depend ondepend on
q1 q2
Coulombrsquos LawCoulombrsquos Law
1The charge on q1The charge on q11 and q and q22
2The distance (d)2The distance (d)
d
q-
d d2
q1 q2
Mathematical Model for Mathematical Model for Coulombrsquos Law Force (F)Coulombrsquos Law Force (F)
d
F infinF infin q1q2 q1q2
F infinF infin 1d 1d22
q1 q2d
F =F =
qq11qq22
dd22KK
K = 90 X 10K = 90 X 1099 N Nmm22CC22
q1 q2d=3cm
d = 3cm = 3x10d = 3cm = 3x10-2-2mmK = 90 X 10K = 90 X 1099 N Nmm22CC22
qq11= +6= +6μμC = +6x10C = +6x10-6-6CCqq22= +3= +3μμC = +6x10C = +6x10-6-6C C
What is the force on qWhat is the force on q22
F =F =
(3X10(3X10-2-2m)m)22
9X109X1099NNmm22CC22(6X10(6X10-6-6C)(6X10C)(6X10-6-6C)C)
qq11qq22
dd22
KK
F =F = 18X1018X1022NN
q1 q2
Electric FieldsElectric Fields
Think of gravity or Think of gravity or gravitational field to gravitational field to
understand electric fieldsunderstand electric fields
Electric Fields Electric Fields vs vs GravityGravity
gg
Electric Electric FieldsFields
EE
neutralneutral neutralneutral
++++++++++++++++++++
- - - - - - - - - - - - - - - - - - - -
ElectricElectric Fields Fields
EE
++
++
++++++++++++++++++++
- - - - - - - - - - - - - - - - - - - -
Electric Electric FieldsFields
EE
--
--
++++++++++++++++++++
- - - - - - - - - - - - - - - - - - - -
Electric FieldsElectric Fields
A force field due to electric A force field due to electric chargescharges
EE
A force on a charge due to A force on a charge due to another chageanother chage
Electric Field Point ChargeElectric Field Point Charge
E =E = kqkqrr22
rr
Force on a charge lsquoqrsquo in an Force on a charge lsquoqrsquo in an Electric FieldElectric Field
QQqq
E =E = FFqq
E =E = FFqq
E =E = NewtonNewtonCoulombCoulomb
E =E = NNCC
Energy and WorkEnergy and Work
Energy and WorkEnergy and Work
++ --
It takes work to move It takes work to move the ldquo-rdquo chargethe ldquo-rdquo charge
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
++
qrsquoqrsquo
ΔΔV =V =
Work on Work on qrsquoqrsquo
qrsquoqrsquo
JoulJouleeCoulomCoulom
bb=== volt= volt
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
++
qrsquoqrsquo
ΔΔV = VV = VBB - V - VAA
VVAA VVBB
ldquoldquoPotential DifferencerdquoPotential DifferencerdquoVoltageVoltage
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
ΔΔV V = = Fd Fd
q q ΔΔV V = = Eqd Eqd
q q
E = E = F F q q
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
ΔΔV V = = Ed Ed
Example Example Two parallel plates are given Two parallel plates are given opposite charges A opposite charges A
voltmeter measures the voltmeter measures the electric potental differnece electric potental differnece to be 60V The plates are to be 60V The plates are 3ocm apart What is the 3ocm apart What is the magnitude of the electric magnitude of the electric
field between them field between them
- - - - - - - - - - - - - - - - - - - -
++++++++ ++++++++++++
EΔV
d
ΔV=600V D=0030m
ΔΔV V = = Ed Ed
= E = E ΔΔVVd d
= E = E
60V60V003003m m
20002000J(mJ(mmiddotC)= E middotC)= E
2000 2000 NNC = E C = E
CurrentCurrent
Flow of chargeFlow of charge
Charge - Coulomb(C) Charge - Coulomb(C) 624 X 10624 X 101818 electrons electrons
e ee e ee e e e e e eeee e
Leyden JarLeyden Jar
ConductorsConductors
Leyden JarLeyden Jar
++++
++++
++++------------ ----
--------
++++ ++++++++
------
CapacitorCapacitor
A capacitor is a passive electronic component that stores energy in the form of an electrostatic field
CapacitorCapacitor
Metal Plates
Insulating MaterialDielectric
CapacitorCapacitor
-+e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
CapacitorCapacitor
-- ---- -- -- ---- --
++++++++ ++++++++
CopperCopperZincZinc
--
CurrentCurrent
e ee e ee e e e e e eeee e
Number of electrons Number of electrons passing a point in a passing a point in a secondsecond
CurrentCurrent
Symbol - Symbol - II
Unit ndash Unit ndash Ampere (Amps)Ampere (Amps)
Amperes - Amperes - AA
ForceForce
e ee e ee e e e e e eeee e
VoltageVoltage
Potential DifferencePotential Difference
Electromotive Force (EMF)Electromotive Force (EMF)
VoltageVoltage
Symbol - Symbol - VV
Unit ndash Unit ndash VoltVolt
Volt - Volt - VV
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
High ResistanceHigh ResistanceInsulatorInsulator
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
Low ResistanceLow ResistanceConductorConductor
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
High and Low ResistanceHigh and Low ResistanceSemiConductorSemiConductor
ResistanceResistance
Symbol - Symbol - RR
Unit ndash Unit ndash OhmOhm
Ohm - Ohm - ΩΩ
Putting it all TogetherPutting it all Together
LoadSource
Path
Homework 1-1Homework 1-1
WorksheetWorksheetDue 9902Due 9902Test 9902Test 9902
q-
Coulombrsquos LawCoulombrsquos Law
q1 q2
Coulombrsquos LawCoulombrsquos Law
What does the force What does the force depend ondepend on
q1 q2
Coulombrsquos LawCoulombrsquos Law
1The charge on q1The charge on q11 and q and q22
2The distance (d)2The distance (d)
d
q-
d d2
q1 q2
Mathematical Model for Mathematical Model for Coulombrsquos Law Force (F)Coulombrsquos Law Force (F)
d
F infinF infin q1q2 q1q2
F infinF infin 1d 1d22
q1 q2d
F =F =
qq11qq22
dd22KK
K = 90 X 10K = 90 X 1099 N Nmm22CC22
q1 q2d=3cm
d = 3cm = 3x10d = 3cm = 3x10-2-2mmK = 90 X 10K = 90 X 1099 N Nmm22CC22
qq11= +6= +6μμC = +6x10C = +6x10-6-6CCqq22= +3= +3μμC = +6x10C = +6x10-6-6C C
What is the force on qWhat is the force on q22
F =F =
(3X10(3X10-2-2m)m)22
9X109X1099NNmm22CC22(6X10(6X10-6-6C)(6X10C)(6X10-6-6C)C)
qq11qq22
dd22
KK
F =F = 18X1018X1022NN
q1 q2
Electric FieldsElectric Fields
Think of gravity or Think of gravity or gravitational field to gravitational field to
understand electric fieldsunderstand electric fields
Electric Fields Electric Fields vs vs GravityGravity
gg
Electric Electric FieldsFields
EE
neutralneutral neutralneutral
++++++++++++++++++++
- - - - - - - - - - - - - - - - - - - -
ElectricElectric Fields Fields
EE
++
++
++++++++++++++++++++
- - - - - - - - - - - - - - - - - - - -
Electric Electric FieldsFields
EE
--
--
++++++++++++++++++++
- - - - - - - - - - - - - - - - - - - -
Electric FieldsElectric Fields
A force field due to electric A force field due to electric chargescharges
EE
A force on a charge due to A force on a charge due to another chageanother chage
Electric Field Point ChargeElectric Field Point Charge
E =E = kqkqrr22
rr
Force on a charge lsquoqrsquo in an Force on a charge lsquoqrsquo in an Electric FieldElectric Field
QQqq
E =E = FFqq
E =E = FFqq
E =E = NewtonNewtonCoulombCoulomb
E =E = NNCC
Energy and WorkEnergy and Work
Energy and WorkEnergy and Work
++ --
It takes work to move It takes work to move the ldquo-rdquo chargethe ldquo-rdquo charge
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
++
qrsquoqrsquo
ΔΔV =V =
Work on Work on qrsquoqrsquo
qrsquoqrsquo
JoulJouleeCoulomCoulom
bb=== volt= volt
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
++
qrsquoqrsquo
ΔΔV = VV = VBB - V - VAA
VVAA VVBB
ldquoldquoPotential DifferencerdquoPotential DifferencerdquoVoltageVoltage
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
ΔΔV V = = Fd Fd
q q ΔΔV V = = Eqd Eqd
q q
E = E = F F q q
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
ΔΔV V = = Ed Ed
Example Example Two parallel plates are given Two parallel plates are given opposite charges A opposite charges A
voltmeter measures the voltmeter measures the electric potental differnece electric potental differnece to be 60V The plates are to be 60V The plates are 3ocm apart What is the 3ocm apart What is the magnitude of the electric magnitude of the electric
field between them field between them
- - - - - - - - - - - - - - - - - - - -
++++++++ ++++++++++++
EΔV
d
ΔV=600V D=0030m
ΔΔV V = = Ed Ed
= E = E ΔΔVVd d
= E = E
60V60V003003m m
20002000J(mJ(mmiddotC)= E middotC)= E
2000 2000 NNC = E C = E
CurrentCurrent
Flow of chargeFlow of charge
Charge - Coulomb(C) Charge - Coulomb(C) 624 X 10624 X 101818 electrons electrons
e ee e ee e e e e e eeee e
Leyden JarLeyden Jar
ConductorsConductors
Leyden JarLeyden Jar
++++
++++
++++------------ ----
--------
++++ ++++++++
------
CapacitorCapacitor
A capacitor is a passive electronic component that stores energy in the form of an electrostatic field
CapacitorCapacitor
Metal Plates
Insulating MaterialDielectric
CapacitorCapacitor
-+e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
CapacitorCapacitor
-- ---- -- -- ---- --
++++++++ ++++++++
CopperCopperZincZinc
--
CurrentCurrent
e ee e ee e e e e e eeee e
Number of electrons Number of electrons passing a point in a passing a point in a secondsecond
CurrentCurrent
Symbol - Symbol - II
Unit ndash Unit ndash Ampere (Amps)Ampere (Amps)
Amperes - Amperes - AA
ForceForce
e ee e ee e e e e e eeee e
VoltageVoltage
Potential DifferencePotential Difference
Electromotive Force (EMF)Electromotive Force (EMF)
VoltageVoltage
Symbol - Symbol - VV
Unit ndash Unit ndash VoltVolt
Volt - Volt - VV
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
High ResistanceHigh ResistanceInsulatorInsulator
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
Low ResistanceLow ResistanceConductorConductor
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
High and Low ResistanceHigh and Low ResistanceSemiConductorSemiConductor
ResistanceResistance
Symbol - Symbol - RR
Unit ndash Unit ndash OhmOhm
Ohm - Ohm - ΩΩ
Putting it all TogetherPutting it all Together
LoadSource
Path
Homework 1-1Homework 1-1
WorksheetWorksheetDue 9902Due 9902Test 9902Test 9902
q1 q2
Coulombrsquos LawCoulombrsquos Law
What does the force What does the force depend ondepend on
q1 q2
Coulombrsquos LawCoulombrsquos Law
1The charge on q1The charge on q11 and q and q22
2The distance (d)2The distance (d)
d
q-
d d2
q1 q2
Mathematical Model for Mathematical Model for Coulombrsquos Law Force (F)Coulombrsquos Law Force (F)
d
F infinF infin q1q2 q1q2
F infinF infin 1d 1d22
q1 q2d
F =F =
qq11qq22
dd22KK
K = 90 X 10K = 90 X 1099 N Nmm22CC22
q1 q2d=3cm
d = 3cm = 3x10d = 3cm = 3x10-2-2mmK = 90 X 10K = 90 X 1099 N Nmm22CC22
qq11= +6= +6μμC = +6x10C = +6x10-6-6CCqq22= +3= +3μμC = +6x10C = +6x10-6-6C C
What is the force on qWhat is the force on q22
F =F =
(3X10(3X10-2-2m)m)22
9X109X1099NNmm22CC22(6X10(6X10-6-6C)(6X10C)(6X10-6-6C)C)
qq11qq22
dd22
KK
F =F = 18X1018X1022NN
q1 q2
Electric FieldsElectric Fields
Think of gravity or Think of gravity or gravitational field to gravitational field to
understand electric fieldsunderstand electric fields
Electric Fields Electric Fields vs vs GravityGravity
gg
Electric Electric FieldsFields
EE
neutralneutral neutralneutral
++++++++++++++++++++
- - - - - - - - - - - - - - - - - - - -
ElectricElectric Fields Fields
EE
++
++
++++++++++++++++++++
- - - - - - - - - - - - - - - - - - - -
Electric Electric FieldsFields
EE
--
--
++++++++++++++++++++
- - - - - - - - - - - - - - - - - - - -
Electric FieldsElectric Fields
A force field due to electric A force field due to electric chargescharges
EE
A force on a charge due to A force on a charge due to another chageanother chage
Electric Field Point ChargeElectric Field Point Charge
E =E = kqkqrr22
rr
Force on a charge lsquoqrsquo in an Force on a charge lsquoqrsquo in an Electric FieldElectric Field
QQqq
E =E = FFqq
E =E = FFqq
E =E = NewtonNewtonCoulombCoulomb
E =E = NNCC
Energy and WorkEnergy and Work
Energy and WorkEnergy and Work
++ --
It takes work to move It takes work to move the ldquo-rdquo chargethe ldquo-rdquo charge
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
++
qrsquoqrsquo
ΔΔV =V =
Work on Work on qrsquoqrsquo
qrsquoqrsquo
JoulJouleeCoulomCoulom
bb=== volt= volt
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
++
qrsquoqrsquo
ΔΔV = VV = VBB - V - VAA
VVAA VVBB
ldquoldquoPotential DifferencerdquoPotential DifferencerdquoVoltageVoltage
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
ΔΔV V = = Fd Fd
q q ΔΔV V = = Eqd Eqd
q q
E = E = F F q q
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
ΔΔV V = = Ed Ed
Example Example Two parallel plates are given Two parallel plates are given opposite charges A opposite charges A
voltmeter measures the voltmeter measures the electric potental differnece electric potental differnece to be 60V The plates are to be 60V The plates are 3ocm apart What is the 3ocm apart What is the magnitude of the electric magnitude of the electric
field between them field between them
- - - - - - - - - - - - - - - - - - - -
++++++++ ++++++++++++
EΔV
d
ΔV=600V D=0030m
ΔΔV V = = Ed Ed
= E = E ΔΔVVd d
= E = E
60V60V003003m m
20002000J(mJ(mmiddotC)= E middotC)= E
2000 2000 NNC = E C = E
CurrentCurrent
Flow of chargeFlow of charge
Charge - Coulomb(C) Charge - Coulomb(C) 624 X 10624 X 101818 electrons electrons
e ee e ee e e e e e eeee e
Leyden JarLeyden Jar
ConductorsConductors
Leyden JarLeyden Jar
++++
++++
++++------------ ----
--------
++++ ++++++++
------
CapacitorCapacitor
A capacitor is a passive electronic component that stores energy in the form of an electrostatic field
CapacitorCapacitor
Metal Plates
Insulating MaterialDielectric
CapacitorCapacitor
-+e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
CapacitorCapacitor
-- ---- -- -- ---- --
++++++++ ++++++++
CopperCopperZincZinc
--
CurrentCurrent
e ee e ee e e e e e eeee e
Number of electrons Number of electrons passing a point in a passing a point in a secondsecond
CurrentCurrent
Symbol - Symbol - II
Unit ndash Unit ndash Ampere (Amps)Ampere (Amps)
Amperes - Amperes - AA
ForceForce
e ee e ee e e e e e eeee e
VoltageVoltage
Potential DifferencePotential Difference
Electromotive Force (EMF)Electromotive Force (EMF)
VoltageVoltage
Symbol - Symbol - VV
Unit ndash Unit ndash VoltVolt
Volt - Volt - VV
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
High ResistanceHigh ResistanceInsulatorInsulator
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
Low ResistanceLow ResistanceConductorConductor
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
High and Low ResistanceHigh and Low ResistanceSemiConductorSemiConductor
ResistanceResistance
Symbol - Symbol - RR
Unit ndash Unit ndash OhmOhm
Ohm - Ohm - ΩΩ
Putting it all TogetherPutting it all Together
LoadSource
Path
Homework 1-1Homework 1-1
WorksheetWorksheetDue 9902Due 9902Test 9902Test 9902
q1 q2
Coulombrsquos LawCoulombrsquos Law
1The charge on q1The charge on q11 and q and q22
2The distance (d)2The distance (d)
d
q-
d d2
q1 q2
Mathematical Model for Mathematical Model for Coulombrsquos Law Force (F)Coulombrsquos Law Force (F)
d
F infinF infin q1q2 q1q2
F infinF infin 1d 1d22
q1 q2d
F =F =
qq11qq22
dd22KK
K = 90 X 10K = 90 X 1099 N Nmm22CC22
q1 q2d=3cm
d = 3cm = 3x10d = 3cm = 3x10-2-2mmK = 90 X 10K = 90 X 1099 N Nmm22CC22
qq11= +6= +6μμC = +6x10C = +6x10-6-6CCqq22= +3= +3μμC = +6x10C = +6x10-6-6C C
What is the force on qWhat is the force on q22
F =F =
(3X10(3X10-2-2m)m)22
9X109X1099NNmm22CC22(6X10(6X10-6-6C)(6X10C)(6X10-6-6C)C)
qq11qq22
dd22
KK
F =F = 18X1018X1022NN
q1 q2
Electric FieldsElectric Fields
Think of gravity or Think of gravity or gravitational field to gravitational field to
understand electric fieldsunderstand electric fields
Electric Fields Electric Fields vs vs GravityGravity
gg
Electric Electric FieldsFields
EE
neutralneutral neutralneutral
++++++++++++++++++++
- - - - - - - - - - - - - - - - - - - -
ElectricElectric Fields Fields
EE
++
++
++++++++++++++++++++
- - - - - - - - - - - - - - - - - - - -
Electric Electric FieldsFields
EE
--
--
++++++++++++++++++++
- - - - - - - - - - - - - - - - - - - -
Electric FieldsElectric Fields
A force field due to electric A force field due to electric chargescharges
EE
A force on a charge due to A force on a charge due to another chageanother chage
Electric Field Point ChargeElectric Field Point Charge
E =E = kqkqrr22
rr
Force on a charge lsquoqrsquo in an Force on a charge lsquoqrsquo in an Electric FieldElectric Field
QQqq
E =E = FFqq
E =E = FFqq
E =E = NewtonNewtonCoulombCoulomb
E =E = NNCC
Energy and WorkEnergy and Work
Energy and WorkEnergy and Work
++ --
It takes work to move It takes work to move the ldquo-rdquo chargethe ldquo-rdquo charge
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
++
qrsquoqrsquo
ΔΔV =V =
Work on Work on qrsquoqrsquo
qrsquoqrsquo
JoulJouleeCoulomCoulom
bb=== volt= volt
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
++
qrsquoqrsquo
ΔΔV = VV = VBB - V - VAA
VVAA VVBB
ldquoldquoPotential DifferencerdquoPotential DifferencerdquoVoltageVoltage
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
ΔΔV V = = Fd Fd
q q ΔΔV V = = Eqd Eqd
q q
E = E = F F q q
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
ΔΔV V = = Ed Ed
Example Example Two parallel plates are given Two parallel plates are given opposite charges A opposite charges A
voltmeter measures the voltmeter measures the electric potental differnece electric potental differnece to be 60V The plates are to be 60V The plates are 3ocm apart What is the 3ocm apart What is the magnitude of the electric magnitude of the electric
field between them field between them
- - - - - - - - - - - - - - - - - - - -
++++++++ ++++++++++++
EΔV
d
ΔV=600V D=0030m
ΔΔV V = = Ed Ed
= E = E ΔΔVVd d
= E = E
60V60V003003m m
20002000J(mJ(mmiddotC)= E middotC)= E
2000 2000 NNC = E C = E
CurrentCurrent
Flow of chargeFlow of charge
Charge - Coulomb(C) Charge - Coulomb(C) 624 X 10624 X 101818 electrons electrons
e ee e ee e e e e e eeee e
Leyden JarLeyden Jar
ConductorsConductors
Leyden JarLeyden Jar
++++
++++
++++------------ ----
--------
++++ ++++++++
------
CapacitorCapacitor
A capacitor is a passive electronic component that stores energy in the form of an electrostatic field
CapacitorCapacitor
Metal Plates
Insulating MaterialDielectric
CapacitorCapacitor
-+e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
CapacitorCapacitor
-- ---- -- -- ---- --
++++++++ ++++++++
CopperCopperZincZinc
--
CurrentCurrent
e ee e ee e e e e e eeee e
Number of electrons Number of electrons passing a point in a passing a point in a secondsecond
CurrentCurrent
Symbol - Symbol - II
Unit ndash Unit ndash Ampere (Amps)Ampere (Amps)
Amperes - Amperes - AA
ForceForce
e ee e ee e e e e e eeee e
VoltageVoltage
Potential DifferencePotential Difference
Electromotive Force (EMF)Electromotive Force (EMF)
VoltageVoltage
Symbol - Symbol - VV
Unit ndash Unit ndash VoltVolt
Volt - Volt - VV
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
High ResistanceHigh ResistanceInsulatorInsulator
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
Low ResistanceLow ResistanceConductorConductor
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
High and Low ResistanceHigh and Low ResistanceSemiConductorSemiConductor
ResistanceResistance
Symbol - Symbol - RR
Unit ndash Unit ndash OhmOhm
Ohm - Ohm - ΩΩ
Putting it all TogetherPutting it all Together
LoadSource
Path
Homework 1-1Homework 1-1
WorksheetWorksheetDue 9902Due 9902Test 9902Test 9902
q-
d d2
q1 q2
Mathematical Model for Mathematical Model for Coulombrsquos Law Force (F)Coulombrsquos Law Force (F)
d
F infinF infin q1q2 q1q2
F infinF infin 1d 1d22
q1 q2d
F =F =
qq11qq22
dd22KK
K = 90 X 10K = 90 X 1099 N Nmm22CC22
q1 q2d=3cm
d = 3cm = 3x10d = 3cm = 3x10-2-2mmK = 90 X 10K = 90 X 1099 N Nmm22CC22
qq11= +6= +6μμC = +6x10C = +6x10-6-6CCqq22= +3= +3μμC = +6x10C = +6x10-6-6C C
What is the force on qWhat is the force on q22
F =F =
(3X10(3X10-2-2m)m)22
9X109X1099NNmm22CC22(6X10(6X10-6-6C)(6X10C)(6X10-6-6C)C)
qq11qq22
dd22
KK
F =F = 18X1018X1022NN
q1 q2
Electric FieldsElectric Fields
Think of gravity or Think of gravity or gravitational field to gravitational field to
understand electric fieldsunderstand electric fields
Electric Fields Electric Fields vs vs GravityGravity
gg
Electric Electric FieldsFields
EE
neutralneutral neutralneutral
++++++++++++++++++++
- - - - - - - - - - - - - - - - - - - -
ElectricElectric Fields Fields
EE
++
++
++++++++++++++++++++
- - - - - - - - - - - - - - - - - - - -
Electric Electric FieldsFields
EE
--
--
++++++++++++++++++++
- - - - - - - - - - - - - - - - - - - -
Electric FieldsElectric Fields
A force field due to electric A force field due to electric chargescharges
EE
A force on a charge due to A force on a charge due to another chageanother chage
Electric Field Point ChargeElectric Field Point Charge
E =E = kqkqrr22
rr
Force on a charge lsquoqrsquo in an Force on a charge lsquoqrsquo in an Electric FieldElectric Field
QQqq
E =E = FFqq
E =E = FFqq
E =E = NewtonNewtonCoulombCoulomb
E =E = NNCC
Energy and WorkEnergy and Work
Energy and WorkEnergy and Work
++ --
It takes work to move It takes work to move the ldquo-rdquo chargethe ldquo-rdquo charge
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
++
qrsquoqrsquo
ΔΔV =V =
Work on Work on qrsquoqrsquo
qrsquoqrsquo
JoulJouleeCoulomCoulom
bb=== volt= volt
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
++
qrsquoqrsquo
ΔΔV = VV = VBB - V - VAA
VVAA VVBB
ldquoldquoPotential DifferencerdquoPotential DifferencerdquoVoltageVoltage
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
ΔΔV V = = Fd Fd
q q ΔΔV V = = Eqd Eqd
q q
E = E = F F q q
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
ΔΔV V = = Ed Ed
Example Example Two parallel plates are given Two parallel plates are given opposite charges A opposite charges A
voltmeter measures the voltmeter measures the electric potental differnece electric potental differnece to be 60V The plates are to be 60V The plates are 3ocm apart What is the 3ocm apart What is the magnitude of the electric magnitude of the electric
field between them field between them
- - - - - - - - - - - - - - - - - - - -
++++++++ ++++++++++++
EΔV
d
ΔV=600V D=0030m
ΔΔV V = = Ed Ed
= E = E ΔΔVVd d
= E = E
60V60V003003m m
20002000J(mJ(mmiddotC)= E middotC)= E
2000 2000 NNC = E C = E
CurrentCurrent
Flow of chargeFlow of charge
Charge - Coulomb(C) Charge - Coulomb(C) 624 X 10624 X 101818 electrons electrons
e ee e ee e e e e e eeee e
Leyden JarLeyden Jar
ConductorsConductors
Leyden JarLeyden Jar
++++
++++
++++------------ ----
--------
++++ ++++++++
------
CapacitorCapacitor
A capacitor is a passive electronic component that stores energy in the form of an electrostatic field
CapacitorCapacitor
Metal Plates
Insulating MaterialDielectric
CapacitorCapacitor
-+e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
CapacitorCapacitor
-- ---- -- -- ---- --
++++++++ ++++++++
CopperCopperZincZinc
--
CurrentCurrent
e ee e ee e e e e e eeee e
Number of electrons Number of electrons passing a point in a passing a point in a secondsecond
CurrentCurrent
Symbol - Symbol - II
Unit ndash Unit ndash Ampere (Amps)Ampere (Amps)
Amperes - Amperes - AA
ForceForce
e ee e ee e e e e e eeee e
VoltageVoltage
Potential DifferencePotential Difference
Electromotive Force (EMF)Electromotive Force (EMF)
VoltageVoltage
Symbol - Symbol - VV
Unit ndash Unit ndash VoltVolt
Volt - Volt - VV
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
High ResistanceHigh ResistanceInsulatorInsulator
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
Low ResistanceLow ResistanceConductorConductor
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
High and Low ResistanceHigh and Low ResistanceSemiConductorSemiConductor
ResistanceResistance
Symbol - Symbol - RR
Unit ndash Unit ndash OhmOhm
Ohm - Ohm - ΩΩ
Putting it all TogetherPutting it all Together
LoadSource
Path
Homework 1-1Homework 1-1
WorksheetWorksheetDue 9902Due 9902Test 9902Test 9902
q1 q2
Mathematical Model for Mathematical Model for Coulombrsquos Law Force (F)Coulombrsquos Law Force (F)
d
F infinF infin q1q2 q1q2
F infinF infin 1d 1d22
q1 q2d
F =F =
qq11qq22
dd22KK
K = 90 X 10K = 90 X 1099 N Nmm22CC22
q1 q2d=3cm
d = 3cm = 3x10d = 3cm = 3x10-2-2mmK = 90 X 10K = 90 X 1099 N Nmm22CC22
qq11= +6= +6μμC = +6x10C = +6x10-6-6CCqq22= +3= +3μμC = +6x10C = +6x10-6-6C C
What is the force on qWhat is the force on q22
F =F =
(3X10(3X10-2-2m)m)22
9X109X1099NNmm22CC22(6X10(6X10-6-6C)(6X10C)(6X10-6-6C)C)
qq11qq22
dd22
KK
F =F = 18X1018X1022NN
q1 q2
Electric FieldsElectric Fields
Think of gravity or Think of gravity or gravitational field to gravitational field to
understand electric fieldsunderstand electric fields
Electric Fields Electric Fields vs vs GravityGravity
gg
Electric Electric FieldsFields
EE
neutralneutral neutralneutral
++++++++++++++++++++
- - - - - - - - - - - - - - - - - - - -
ElectricElectric Fields Fields
EE
++
++
++++++++++++++++++++
- - - - - - - - - - - - - - - - - - - -
Electric Electric FieldsFields
EE
--
--
++++++++++++++++++++
- - - - - - - - - - - - - - - - - - - -
Electric FieldsElectric Fields
A force field due to electric A force field due to electric chargescharges
EE
A force on a charge due to A force on a charge due to another chageanother chage
Electric Field Point ChargeElectric Field Point Charge
E =E = kqkqrr22
rr
Force on a charge lsquoqrsquo in an Force on a charge lsquoqrsquo in an Electric FieldElectric Field
QQqq
E =E = FFqq
E =E = FFqq
E =E = NewtonNewtonCoulombCoulomb
E =E = NNCC
Energy and WorkEnergy and Work
Energy and WorkEnergy and Work
++ --
It takes work to move It takes work to move the ldquo-rdquo chargethe ldquo-rdquo charge
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
++
qrsquoqrsquo
ΔΔV =V =
Work on Work on qrsquoqrsquo
qrsquoqrsquo
JoulJouleeCoulomCoulom
bb=== volt= volt
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
++
qrsquoqrsquo
ΔΔV = VV = VBB - V - VAA
VVAA VVBB
ldquoldquoPotential DifferencerdquoPotential DifferencerdquoVoltageVoltage
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
ΔΔV V = = Fd Fd
q q ΔΔV V = = Eqd Eqd
q q
E = E = F F q q
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
ΔΔV V = = Ed Ed
Example Example Two parallel plates are given Two parallel plates are given opposite charges A opposite charges A
voltmeter measures the voltmeter measures the electric potental differnece electric potental differnece to be 60V The plates are to be 60V The plates are 3ocm apart What is the 3ocm apart What is the magnitude of the electric magnitude of the electric
field between them field between them
- - - - - - - - - - - - - - - - - - - -
++++++++ ++++++++++++
EΔV
d
ΔV=600V D=0030m
ΔΔV V = = Ed Ed
= E = E ΔΔVVd d
= E = E
60V60V003003m m
20002000J(mJ(mmiddotC)= E middotC)= E
2000 2000 NNC = E C = E
CurrentCurrent
Flow of chargeFlow of charge
Charge - Coulomb(C) Charge - Coulomb(C) 624 X 10624 X 101818 electrons electrons
e ee e ee e e e e e eeee e
Leyden JarLeyden Jar
ConductorsConductors
Leyden JarLeyden Jar
++++
++++
++++------------ ----
--------
++++ ++++++++
------
CapacitorCapacitor
A capacitor is a passive electronic component that stores energy in the form of an electrostatic field
CapacitorCapacitor
Metal Plates
Insulating MaterialDielectric
CapacitorCapacitor
-+e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
CapacitorCapacitor
-- ---- -- -- ---- --
++++++++ ++++++++
CopperCopperZincZinc
--
CurrentCurrent
e ee e ee e e e e e eeee e
Number of electrons Number of electrons passing a point in a passing a point in a secondsecond
CurrentCurrent
Symbol - Symbol - II
Unit ndash Unit ndash Ampere (Amps)Ampere (Amps)
Amperes - Amperes - AA
ForceForce
e ee e ee e e e e e eeee e
VoltageVoltage
Potential DifferencePotential Difference
Electromotive Force (EMF)Electromotive Force (EMF)
VoltageVoltage
Symbol - Symbol - VV
Unit ndash Unit ndash VoltVolt
Volt - Volt - VV
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
High ResistanceHigh ResistanceInsulatorInsulator
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
Low ResistanceLow ResistanceConductorConductor
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
High and Low ResistanceHigh and Low ResistanceSemiConductorSemiConductor
ResistanceResistance
Symbol - Symbol - RR
Unit ndash Unit ndash OhmOhm
Ohm - Ohm - ΩΩ
Putting it all TogetherPutting it all Together
LoadSource
Path
Homework 1-1Homework 1-1
WorksheetWorksheetDue 9902Due 9902Test 9902Test 9902
q1 q2d
F =F =
qq11qq22
dd22KK
K = 90 X 10K = 90 X 1099 N Nmm22CC22
q1 q2d=3cm
d = 3cm = 3x10d = 3cm = 3x10-2-2mmK = 90 X 10K = 90 X 1099 N Nmm22CC22
qq11= +6= +6μμC = +6x10C = +6x10-6-6CCqq22= +3= +3μμC = +6x10C = +6x10-6-6C C
What is the force on qWhat is the force on q22
F =F =
(3X10(3X10-2-2m)m)22
9X109X1099NNmm22CC22(6X10(6X10-6-6C)(6X10C)(6X10-6-6C)C)
qq11qq22
dd22
KK
F =F = 18X1018X1022NN
q1 q2
Electric FieldsElectric Fields
Think of gravity or Think of gravity or gravitational field to gravitational field to
understand electric fieldsunderstand electric fields
Electric Fields Electric Fields vs vs GravityGravity
gg
Electric Electric FieldsFields
EE
neutralneutral neutralneutral
++++++++++++++++++++
- - - - - - - - - - - - - - - - - - - -
ElectricElectric Fields Fields
EE
++
++
++++++++++++++++++++
- - - - - - - - - - - - - - - - - - - -
Electric Electric FieldsFields
EE
--
--
++++++++++++++++++++
- - - - - - - - - - - - - - - - - - - -
Electric FieldsElectric Fields
A force field due to electric A force field due to electric chargescharges
EE
A force on a charge due to A force on a charge due to another chageanother chage
Electric Field Point ChargeElectric Field Point Charge
E =E = kqkqrr22
rr
Force on a charge lsquoqrsquo in an Force on a charge lsquoqrsquo in an Electric FieldElectric Field
QQqq
E =E = FFqq
E =E = FFqq
E =E = NewtonNewtonCoulombCoulomb
E =E = NNCC
Energy and WorkEnergy and Work
Energy and WorkEnergy and Work
++ --
It takes work to move It takes work to move the ldquo-rdquo chargethe ldquo-rdquo charge
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
++
qrsquoqrsquo
ΔΔV =V =
Work on Work on qrsquoqrsquo
qrsquoqrsquo
JoulJouleeCoulomCoulom
bb=== volt= volt
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
++
qrsquoqrsquo
ΔΔV = VV = VBB - V - VAA
VVAA VVBB
ldquoldquoPotential DifferencerdquoPotential DifferencerdquoVoltageVoltage
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
ΔΔV V = = Fd Fd
q q ΔΔV V = = Eqd Eqd
q q
E = E = F F q q
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
ΔΔV V = = Ed Ed
Example Example Two parallel plates are given Two parallel plates are given opposite charges A opposite charges A
voltmeter measures the voltmeter measures the electric potental differnece electric potental differnece to be 60V The plates are to be 60V The plates are 3ocm apart What is the 3ocm apart What is the magnitude of the electric magnitude of the electric
field between them field between them
- - - - - - - - - - - - - - - - - - - -
++++++++ ++++++++++++
EΔV
d
ΔV=600V D=0030m
ΔΔV V = = Ed Ed
= E = E ΔΔVVd d
= E = E
60V60V003003m m
20002000J(mJ(mmiddotC)= E middotC)= E
2000 2000 NNC = E C = E
CurrentCurrent
Flow of chargeFlow of charge
Charge - Coulomb(C) Charge - Coulomb(C) 624 X 10624 X 101818 electrons electrons
e ee e ee e e e e e eeee e
Leyden JarLeyden Jar
ConductorsConductors
Leyden JarLeyden Jar
++++
++++
++++------------ ----
--------
++++ ++++++++
------
CapacitorCapacitor
A capacitor is a passive electronic component that stores energy in the form of an electrostatic field
CapacitorCapacitor
Metal Plates
Insulating MaterialDielectric
CapacitorCapacitor
-+e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
CapacitorCapacitor
-- ---- -- -- ---- --
++++++++ ++++++++
CopperCopperZincZinc
--
CurrentCurrent
e ee e ee e e e e e eeee e
Number of electrons Number of electrons passing a point in a passing a point in a secondsecond
CurrentCurrent
Symbol - Symbol - II
Unit ndash Unit ndash Ampere (Amps)Ampere (Amps)
Amperes - Amperes - AA
ForceForce
e ee e ee e e e e e eeee e
VoltageVoltage
Potential DifferencePotential Difference
Electromotive Force (EMF)Electromotive Force (EMF)
VoltageVoltage
Symbol - Symbol - VV
Unit ndash Unit ndash VoltVolt
Volt - Volt - VV
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
High ResistanceHigh ResistanceInsulatorInsulator
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
Low ResistanceLow ResistanceConductorConductor
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
High and Low ResistanceHigh and Low ResistanceSemiConductorSemiConductor
ResistanceResistance
Symbol - Symbol - RR
Unit ndash Unit ndash OhmOhm
Ohm - Ohm - ΩΩ
Putting it all TogetherPutting it all Together
LoadSource
Path
Homework 1-1Homework 1-1
WorksheetWorksheetDue 9902Due 9902Test 9902Test 9902
q1 q2d=3cm
d = 3cm = 3x10d = 3cm = 3x10-2-2mmK = 90 X 10K = 90 X 1099 N Nmm22CC22
qq11= +6= +6μμC = +6x10C = +6x10-6-6CCqq22= +3= +3μμC = +6x10C = +6x10-6-6C C
What is the force on qWhat is the force on q22
F =F =
(3X10(3X10-2-2m)m)22
9X109X1099NNmm22CC22(6X10(6X10-6-6C)(6X10C)(6X10-6-6C)C)
qq11qq22
dd22
KK
F =F = 18X1018X1022NN
q1 q2
Electric FieldsElectric Fields
Think of gravity or Think of gravity or gravitational field to gravitational field to
understand electric fieldsunderstand electric fields
Electric Fields Electric Fields vs vs GravityGravity
gg
Electric Electric FieldsFields
EE
neutralneutral neutralneutral
++++++++++++++++++++
- - - - - - - - - - - - - - - - - - - -
ElectricElectric Fields Fields
EE
++
++
++++++++++++++++++++
- - - - - - - - - - - - - - - - - - - -
Electric Electric FieldsFields
EE
--
--
++++++++++++++++++++
- - - - - - - - - - - - - - - - - - - -
Electric FieldsElectric Fields
A force field due to electric A force field due to electric chargescharges
EE
A force on a charge due to A force on a charge due to another chageanother chage
Electric Field Point ChargeElectric Field Point Charge
E =E = kqkqrr22
rr
Force on a charge lsquoqrsquo in an Force on a charge lsquoqrsquo in an Electric FieldElectric Field
QQqq
E =E = FFqq
E =E = FFqq
E =E = NewtonNewtonCoulombCoulomb
E =E = NNCC
Energy and WorkEnergy and Work
Energy and WorkEnergy and Work
++ --
It takes work to move It takes work to move the ldquo-rdquo chargethe ldquo-rdquo charge
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
++
qrsquoqrsquo
ΔΔV =V =
Work on Work on qrsquoqrsquo
qrsquoqrsquo
JoulJouleeCoulomCoulom
bb=== volt= volt
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
++
qrsquoqrsquo
ΔΔV = VV = VBB - V - VAA
VVAA VVBB
ldquoldquoPotential DifferencerdquoPotential DifferencerdquoVoltageVoltage
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
ΔΔV V = = Fd Fd
q q ΔΔV V = = Eqd Eqd
q q
E = E = F F q q
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
ΔΔV V = = Ed Ed
Example Example Two parallel plates are given Two parallel plates are given opposite charges A opposite charges A
voltmeter measures the voltmeter measures the electric potental differnece electric potental differnece to be 60V The plates are to be 60V The plates are 3ocm apart What is the 3ocm apart What is the magnitude of the electric magnitude of the electric
field between them field between them
- - - - - - - - - - - - - - - - - - - -
++++++++ ++++++++++++
EΔV
d
ΔV=600V D=0030m
ΔΔV V = = Ed Ed
= E = E ΔΔVVd d
= E = E
60V60V003003m m
20002000J(mJ(mmiddotC)= E middotC)= E
2000 2000 NNC = E C = E
CurrentCurrent
Flow of chargeFlow of charge
Charge - Coulomb(C) Charge - Coulomb(C) 624 X 10624 X 101818 electrons electrons
e ee e ee e e e e e eeee e
Leyden JarLeyden Jar
ConductorsConductors
Leyden JarLeyden Jar
++++
++++
++++------------ ----
--------
++++ ++++++++
------
CapacitorCapacitor
A capacitor is a passive electronic component that stores energy in the form of an electrostatic field
CapacitorCapacitor
Metal Plates
Insulating MaterialDielectric
CapacitorCapacitor
-+e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
CapacitorCapacitor
-- ---- -- -- ---- --
++++++++ ++++++++
CopperCopperZincZinc
--
CurrentCurrent
e ee e ee e e e e e eeee e
Number of electrons Number of electrons passing a point in a passing a point in a secondsecond
CurrentCurrent
Symbol - Symbol - II
Unit ndash Unit ndash Ampere (Amps)Ampere (Amps)
Amperes - Amperes - AA
ForceForce
e ee e ee e e e e e eeee e
VoltageVoltage
Potential DifferencePotential Difference
Electromotive Force (EMF)Electromotive Force (EMF)
VoltageVoltage
Symbol - Symbol - VV
Unit ndash Unit ndash VoltVolt
Volt - Volt - VV
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
High ResistanceHigh ResistanceInsulatorInsulator
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
Low ResistanceLow ResistanceConductorConductor
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
High and Low ResistanceHigh and Low ResistanceSemiConductorSemiConductor
ResistanceResistance
Symbol - Symbol - RR
Unit ndash Unit ndash OhmOhm
Ohm - Ohm - ΩΩ
Putting it all TogetherPutting it all Together
LoadSource
Path
Homework 1-1Homework 1-1
WorksheetWorksheetDue 9902Due 9902Test 9902Test 9902
F =F =
(3X10(3X10-2-2m)m)22
9X109X1099NNmm22CC22(6X10(6X10-6-6C)(6X10C)(6X10-6-6C)C)
qq11qq22
dd22
KK
F =F = 18X1018X1022NN
q1 q2
Electric FieldsElectric Fields
Think of gravity or Think of gravity or gravitational field to gravitational field to
understand electric fieldsunderstand electric fields
Electric Fields Electric Fields vs vs GravityGravity
gg
Electric Electric FieldsFields
EE
neutralneutral neutralneutral
++++++++++++++++++++
- - - - - - - - - - - - - - - - - - - -
ElectricElectric Fields Fields
EE
++
++
++++++++++++++++++++
- - - - - - - - - - - - - - - - - - - -
Electric Electric FieldsFields
EE
--
--
++++++++++++++++++++
- - - - - - - - - - - - - - - - - - - -
Electric FieldsElectric Fields
A force field due to electric A force field due to electric chargescharges
EE
A force on a charge due to A force on a charge due to another chageanother chage
Electric Field Point ChargeElectric Field Point Charge
E =E = kqkqrr22
rr
Force on a charge lsquoqrsquo in an Force on a charge lsquoqrsquo in an Electric FieldElectric Field
QQqq
E =E = FFqq
E =E = FFqq
E =E = NewtonNewtonCoulombCoulomb
E =E = NNCC
Energy and WorkEnergy and Work
Energy and WorkEnergy and Work
++ --
It takes work to move It takes work to move the ldquo-rdquo chargethe ldquo-rdquo charge
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
++
qrsquoqrsquo
ΔΔV =V =
Work on Work on qrsquoqrsquo
qrsquoqrsquo
JoulJouleeCoulomCoulom
bb=== volt= volt
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
++
qrsquoqrsquo
ΔΔV = VV = VBB - V - VAA
VVAA VVBB
ldquoldquoPotential DifferencerdquoPotential DifferencerdquoVoltageVoltage
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
ΔΔV V = = Fd Fd
q q ΔΔV V = = Eqd Eqd
q q
E = E = F F q q
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
ΔΔV V = = Ed Ed
Example Example Two parallel plates are given Two parallel plates are given opposite charges A opposite charges A
voltmeter measures the voltmeter measures the electric potental differnece electric potental differnece to be 60V The plates are to be 60V The plates are 3ocm apart What is the 3ocm apart What is the magnitude of the electric magnitude of the electric
field between them field between them
- - - - - - - - - - - - - - - - - - - -
++++++++ ++++++++++++
EΔV
d
ΔV=600V D=0030m
ΔΔV V = = Ed Ed
= E = E ΔΔVVd d
= E = E
60V60V003003m m
20002000J(mJ(mmiddotC)= E middotC)= E
2000 2000 NNC = E C = E
CurrentCurrent
Flow of chargeFlow of charge
Charge - Coulomb(C) Charge - Coulomb(C) 624 X 10624 X 101818 electrons electrons
e ee e ee e e e e e eeee e
Leyden JarLeyden Jar
ConductorsConductors
Leyden JarLeyden Jar
++++
++++
++++------------ ----
--------
++++ ++++++++
------
CapacitorCapacitor
A capacitor is a passive electronic component that stores energy in the form of an electrostatic field
CapacitorCapacitor
Metal Plates
Insulating MaterialDielectric
CapacitorCapacitor
-+e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
CapacitorCapacitor
-- ---- -- -- ---- --
++++++++ ++++++++
CopperCopperZincZinc
--
CurrentCurrent
e ee e ee e e e e e eeee e
Number of electrons Number of electrons passing a point in a passing a point in a secondsecond
CurrentCurrent
Symbol - Symbol - II
Unit ndash Unit ndash Ampere (Amps)Ampere (Amps)
Amperes - Amperes - AA
ForceForce
e ee e ee e e e e e eeee e
VoltageVoltage
Potential DifferencePotential Difference
Electromotive Force (EMF)Electromotive Force (EMF)
VoltageVoltage
Symbol - Symbol - VV
Unit ndash Unit ndash VoltVolt
Volt - Volt - VV
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
High ResistanceHigh ResistanceInsulatorInsulator
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
Low ResistanceLow ResistanceConductorConductor
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
High and Low ResistanceHigh and Low ResistanceSemiConductorSemiConductor
ResistanceResistance
Symbol - Symbol - RR
Unit ndash Unit ndash OhmOhm
Ohm - Ohm - ΩΩ
Putting it all TogetherPutting it all Together
LoadSource
Path
Homework 1-1Homework 1-1
WorksheetWorksheetDue 9902Due 9902Test 9902Test 9902
Electric FieldsElectric Fields
Think of gravity or Think of gravity or gravitational field to gravitational field to
understand electric fieldsunderstand electric fields
Electric Fields Electric Fields vs vs GravityGravity
gg
Electric Electric FieldsFields
EE
neutralneutral neutralneutral
++++++++++++++++++++
- - - - - - - - - - - - - - - - - - - -
ElectricElectric Fields Fields
EE
++
++
++++++++++++++++++++
- - - - - - - - - - - - - - - - - - - -
Electric Electric FieldsFields
EE
--
--
++++++++++++++++++++
- - - - - - - - - - - - - - - - - - - -
Electric FieldsElectric Fields
A force field due to electric A force field due to electric chargescharges
EE
A force on a charge due to A force on a charge due to another chageanother chage
Electric Field Point ChargeElectric Field Point Charge
E =E = kqkqrr22
rr
Force on a charge lsquoqrsquo in an Force on a charge lsquoqrsquo in an Electric FieldElectric Field
QQqq
E =E = FFqq
E =E = FFqq
E =E = NewtonNewtonCoulombCoulomb
E =E = NNCC
Energy and WorkEnergy and Work
Energy and WorkEnergy and Work
++ --
It takes work to move It takes work to move the ldquo-rdquo chargethe ldquo-rdquo charge
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
++
qrsquoqrsquo
ΔΔV =V =
Work on Work on qrsquoqrsquo
qrsquoqrsquo
JoulJouleeCoulomCoulom
bb=== volt= volt
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
++
qrsquoqrsquo
ΔΔV = VV = VBB - V - VAA
VVAA VVBB
ldquoldquoPotential DifferencerdquoPotential DifferencerdquoVoltageVoltage
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
ΔΔV V = = Fd Fd
q q ΔΔV V = = Eqd Eqd
q q
E = E = F F q q
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
ΔΔV V = = Ed Ed
Example Example Two parallel plates are given Two parallel plates are given opposite charges A opposite charges A
voltmeter measures the voltmeter measures the electric potental differnece electric potental differnece to be 60V The plates are to be 60V The plates are 3ocm apart What is the 3ocm apart What is the magnitude of the electric magnitude of the electric
field between them field between them
- - - - - - - - - - - - - - - - - - - -
++++++++ ++++++++++++
EΔV
d
ΔV=600V D=0030m
ΔΔV V = = Ed Ed
= E = E ΔΔVVd d
= E = E
60V60V003003m m
20002000J(mJ(mmiddotC)= E middotC)= E
2000 2000 NNC = E C = E
CurrentCurrent
Flow of chargeFlow of charge
Charge - Coulomb(C) Charge - Coulomb(C) 624 X 10624 X 101818 electrons electrons
e ee e ee e e e e e eeee e
Leyden JarLeyden Jar
ConductorsConductors
Leyden JarLeyden Jar
++++
++++
++++------------ ----
--------
++++ ++++++++
------
CapacitorCapacitor
A capacitor is a passive electronic component that stores energy in the form of an electrostatic field
CapacitorCapacitor
Metal Plates
Insulating MaterialDielectric
CapacitorCapacitor
-+e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
CapacitorCapacitor
-- ---- -- -- ---- --
++++++++ ++++++++
CopperCopperZincZinc
--
CurrentCurrent
e ee e ee e e e e e eeee e
Number of electrons Number of electrons passing a point in a passing a point in a secondsecond
CurrentCurrent
Symbol - Symbol - II
Unit ndash Unit ndash Ampere (Amps)Ampere (Amps)
Amperes - Amperes - AA
ForceForce
e ee e ee e e e e e eeee e
VoltageVoltage
Potential DifferencePotential Difference
Electromotive Force (EMF)Electromotive Force (EMF)
VoltageVoltage
Symbol - Symbol - VV
Unit ndash Unit ndash VoltVolt
Volt - Volt - VV
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
High ResistanceHigh ResistanceInsulatorInsulator
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
Low ResistanceLow ResistanceConductorConductor
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
High and Low ResistanceHigh and Low ResistanceSemiConductorSemiConductor
ResistanceResistance
Symbol - Symbol - RR
Unit ndash Unit ndash OhmOhm
Ohm - Ohm - ΩΩ
Putting it all TogetherPutting it all Together
LoadSource
Path
Homework 1-1Homework 1-1
WorksheetWorksheetDue 9902Due 9902Test 9902Test 9902
Electric Fields Electric Fields vs vs GravityGravity
gg
Electric Electric FieldsFields
EE
neutralneutral neutralneutral
++++++++++++++++++++
- - - - - - - - - - - - - - - - - - - -
ElectricElectric Fields Fields
EE
++
++
++++++++++++++++++++
- - - - - - - - - - - - - - - - - - - -
Electric Electric FieldsFields
EE
--
--
++++++++++++++++++++
- - - - - - - - - - - - - - - - - - - -
Electric FieldsElectric Fields
A force field due to electric A force field due to electric chargescharges
EE
A force on a charge due to A force on a charge due to another chageanother chage
Electric Field Point ChargeElectric Field Point Charge
E =E = kqkqrr22
rr
Force on a charge lsquoqrsquo in an Force on a charge lsquoqrsquo in an Electric FieldElectric Field
QQqq
E =E = FFqq
E =E = FFqq
E =E = NewtonNewtonCoulombCoulomb
E =E = NNCC
Energy and WorkEnergy and Work
Energy and WorkEnergy and Work
++ --
It takes work to move It takes work to move the ldquo-rdquo chargethe ldquo-rdquo charge
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
++
qrsquoqrsquo
ΔΔV =V =
Work on Work on qrsquoqrsquo
qrsquoqrsquo
JoulJouleeCoulomCoulom
bb=== volt= volt
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
++
qrsquoqrsquo
ΔΔV = VV = VBB - V - VAA
VVAA VVBB
ldquoldquoPotential DifferencerdquoPotential DifferencerdquoVoltageVoltage
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
ΔΔV V = = Fd Fd
q q ΔΔV V = = Eqd Eqd
q q
E = E = F F q q
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
ΔΔV V = = Ed Ed
Example Example Two parallel plates are given Two parallel plates are given opposite charges A opposite charges A
voltmeter measures the voltmeter measures the electric potental differnece electric potental differnece to be 60V The plates are to be 60V The plates are 3ocm apart What is the 3ocm apart What is the magnitude of the electric magnitude of the electric
field between them field between them
- - - - - - - - - - - - - - - - - - - -
++++++++ ++++++++++++
EΔV
d
ΔV=600V D=0030m
ΔΔV V = = Ed Ed
= E = E ΔΔVVd d
= E = E
60V60V003003m m
20002000J(mJ(mmiddotC)= E middotC)= E
2000 2000 NNC = E C = E
CurrentCurrent
Flow of chargeFlow of charge
Charge - Coulomb(C) Charge - Coulomb(C) 624 X 10624 X 101818 electrons electrons
e ee e ee e e e e e eeee e
Leyden JarLeyden Jar
ConductorsConductors
Leyden JarLeyden Jar
++++
++++
++++------------ ----
--------
++++ ++++++++
------
CapacitorCapacitor
A capacitor is a passive electronic component that stores energy in the form of an electrostatic field
CapacitorCapacitor
Metal Plates
Insulating MaterialDielectric
CapacitorCapacitor
-+e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
CapacitorCapacitor
-- ---- -- -- ---- --
++++++++ ++++++++
CopperCopperZincZinc
--
CurrentCurrent
e ee e ee e e e e e eeee e
Number of electrons Number of electrons passing a point in a passing a point in a secondsecond
CurrentCurrent
Symbol - Symbol - II
Unit ndash Unit ndash Ampere (Amps)Ampere (Amps)
Amperes - Amperes - AA
ForceForce
e ee e ee e e e e e eeee e
VoltageVoltage
Potential DifferencePotential Difference
Electromotive Force (EMF)Electromotive Force (EMF)
VoltageVoltage
Symbol - Symbol - VV
Unit ndash Unit ndash VoltVolt
Volt - Volt - VV
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
High ResistanceHigh ResistanceInsulatorInsulator
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
Low ResistanceLow ResistanceConductorConductor
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
High and Low ResistanceHigh and Low ResistanceSemiConductorSemiConductor
ResistanceResistance
Symbol - Symbol - RR
Unit ndash Unit ndash OhmOhm
Ohm - Ohm - ΩΩ
Putting it all TogetherPutting it all Together
LoadSource
Path
Homework 1-1Homework 1-1
WorksheetWorksheetDue 9902Due 9902Test 9902Test 9902
Electric Electric FieldsFields
EE
neutralneutral neutralneutral
++++++++++++++++++++
- - - - - - - - - - - - - - - - - - - -
ElectricElectric Fields Fields
EE
++
++
++++++++++++++++++++
- - - - - - - - - - - - - - - - - - - -
Electric Electric FieldsFields
EE
--
--
++++++++++++++++++++
- - - - - - - - - - - - - - - - - - - -
Electric FieldsElectric Fields
A force field due to electric A force field due to electric chargescharges
EE
A force on a charge due to A force on a charge due to another chageanother chage
Electric Field Point ChargeElectric Field Point Charge
E =E = kqkqrr22
rr
Force on a charge lsquoqrsquo in an Force on a charge lsquoqrsquo in an Electric FieldElectric Field
QQqq
E =E = FFqq
E =E = FFqq
E =E = NewtonNewtonCoulombCoulomb
E =E = NNCC
Energy and WorkEnergy and Work
Energy and WorkEnergy and Work
++ --
It takes work to move It takes work to move the ldquo-rdquo chargethe ldquo-rdquo charge
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
++
qrsquoqrsquo
ΔΔV =V =
Work on Work on qrsquoqrsquo
qrsquoqrsquo
JoulJouleeCoulomCoulom
bb=== volt= volt
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
++
qrsquoqrsquo
ΔΔV = VV = VBB - V - VAA
VVAA VVBB
ldquoldquoPotential DifferencerdquoPotential DifferencerdquoVoltageVoltage
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
ΔΔV V = = Fd Fd
q q ΔΔV V = = Eqd Eqd
q q
E = E = F F q q
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
ΔΔV V = = Ed Ed
Example Example Two parallel plates are given Two parallel plates are given opposite charges A opposite charges A
voltmeter measures the voltmeter measures the electric potental differnece electric potental differnece to be 60V The plates are to be 60V The plates are 3ocm apart What is the 3ocm apart What is the magnitude of the electric magnitude of the electric
field between them field between them
- - - - - - - - - - - - - - - - - - - -
++++++++ ++++++++++++
EΔV
d
ΔV=600V D=0030m
ΔΔV V = = Ed Ed
= E = E ΔΔVVd d
= E = E
60V60V003003m m
20002000J(mJ(mmiddotC)= E middotC)= E
2000 2000 NNC = E C = E
CurrentCurrent
Flow of chargeFlow of charge
Charge - Coulomb(C) Charge - Coulomb(C) 624 X 10624 X 101818 electrons electrons
e ee e ee e e e e e eeee e
Leyden JarLeyden Jar
ConductorsConductors
Leyden JarLeyden Jar
++++
++++
++++------------ ----
--------
++++ ++++++++
------
CapacitorCapacitor
A capacitor is a passive electronic component that stores energy in the form of an electrostatic field
CapacitorCapacitor
Metal Plates
Insulating MaterialDielectric
CapacitorCapacitor
-+e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
CapacitorCapacitor
-- ---- -- -- ---- --
++++++++ ++++++++
CopperCopperZincZinc
--
CurrentCurrent
e ee e ee e e e e e eeee e
Number of electrons Number of electrons passing a point in a passing a point in a secondsecond
CurrentCurrent
Symbol - Symbol - II
Unit ndash Unit ndash Ampere (Amps)Ampere (Amps)
Amperes - Amperes - AA
ForceForce
e ee e ee e e e e e eeee e
VoltageVoltage
Potential DifferencePotential Difference
Electromotive Force (EMF)Electromotive Force (EMF)
VoltageVoltage
Symbol - Symbol - VV
Unit ndash Unit ndash VoltVolt
Volt - Volt - VV
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
High ResistanceHigh ResistanceInsulatorInsulator
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
Low ResistanceLow ResistanceConductorConductor
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
High and Low ResistanceHigh and Low ResistanceSemiConductorSemiConductor
ResistanceResistance
Symbol - Symbol - RR
Unit ndash Unit ndash OhmOhm
Ohm - Ohm - ΩΩ
Putting it all TogetherPutting it all Together
LoadSource
Path
Homework 1-1Homework 1-1
WorksheetWorksheetDue 9902Due 9902Test 9902Test 9902
ElectricElectric Fields Fields
EE
++
++
++++++++++++++++++++
- - - - - - - - - - - - - - - - - - - -
Electric Electric FieldsFields
EE
--
--
++++++++++++++++++++
- - - - - - - - - - - - - - - - - - - -
Electric FieldsElectric Fields
A force field due to electric A force field due to electric chargescharges
EE
A force on a charge due to A force on a charge due to another chageanother chage
Electric Field Point ChargeElectric Field Point Charge
E =E = kqkqrr22
rr
Force on a charge lsquoqrsquo in an Force on a charge lsquoqrsquo in an Electric FieldElectric Field
QQqq
E =E = FFqq
E =E = FFqq
E =E = NewtonNewtonCoulombCoulomb
E =E = NNCC
Energy and WorkEnergy and Work
Energy and WorkEnergy and Work
++ --
It takes work to move It takes work to move the ldquo-rdquo chargethe ldquo-rdquo charge
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
++
qrsquoqrsquo
ΔΔV =V =
Work on Work on qrsquoqrsquo
qrsquoqrsquo
JoulJouleeCoulomCoulom
bb=== volt= volt
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
++
qrsquoqrsquo
ΔΔV = VV = VBB - V - VAA
VVAA VVBB
ldquoldquoPotential DifferencerdquoPotential DifferencerdquoVoltageVoltage
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
ΔΔV V = = Fd Fd
q q ΔΔV V = = Eqd Eqd
q q
E = E = F F q q
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
ΔΔV V = = Ed Ed
Example Example Two parallel plates are given Two parallel plates are given opposite charges A opposite charges A
voltmeter measures the voltmeter measures the electric potental differnece electric potental differnece to be 60V The plates are to be 60V The plates are 3ocm apart What is the 3ocm apart What is the magnitude of the electric magnitude of the electric
field between them field between them
- - - - - - - - - - - - - - - - - - - -
++++++++ ++++++++++++
EΔV
d
ΔV=600V D=0030m
ΔΔV V = = Ed Ed
= E = E ΔΔVVd d
= E = E
60V60V003003m m
20002000J(mJ(mmiddotC)= E middotC)= E
2000 2000 NNC = E C = E
CurrentCurrent
Flow of chargeFlow of charge
Charge - Coulomb(C) Charge - Coulomb(C) 624 X 10624 X 101818 electrons electrons
e ee e ee e e e e e eeee e
Leyden JarLeyden Jar
ConductorsConductors
Leyden JarLeyden Jar
++++
++++
++++------------ ----
--------
++++ ++++++++
------
CapacitorCapacitor
A capacitor is a passive electronic component that stores energy in the form of an electrostatic field
CapacitorCapacitor
Metal Plates
Insulating MaterialDielectric
CapacitorCapacitor
-+e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
CapacitorCapacitor
-- ---- -- -- ---- --
++++++++ ++++++++
CopperCopperZincZinc
--
CurrentCurrent
e ee e ee e e e e e eeee e
Number of electrons Number of electrons passing a point in a passing a point in a secondsecond
CurrentCurrent
Symbol - Symbol - II
Unit ndash Unit ndash Ampere (Amps)Ampere (Amps)
Amperes - Amperes - AA
ForceForce
e ee e ee e e e e e eeee e
VoltageVoltage
Potential DifferencePotential Difference
Electromotive Force (EMF)Electromotive Force (EMF)
VoltageVoltage
Symbol - Symbol - VV
Unit ndash Unit ndash VoltVolt
Volt - Volt - VV
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
High ResistanceHigh ResistanceInsulatorInsulator
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
Low ResistanceLow ResistanceConductorConductor
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
High and Low ResistanceHigh and Low ResistanceSemiConductorSemiConductor
ResistanceResistance
Symbol - Symbol - RR
Unit ndash Unit ndash OhmOhm
Ohm - Ohm - ΩΩ
Putting it all TogetherPutting it all Together
LoadSource
Path
Homework 1-1Homework 1-1
WorksheetWorksheetDue 9902Due 9902Test 9902Test 9902
Electric Electric FieldsFields
EE
--
--
++++++++++++++++++++
- - - - - - - - - - - - - - - - - - - -
Electric FieldsElectric Fields
A force field due to electric A force field due to electric chargescharges
EE
A force on a charge due to A force on a charge due to another chageanother chage
Electric Field Point ChargeElectric Field Point Charge
E =E = kqkqrr22
rr
Force on a charge lsquoqrsquo in an Force on a charge lsquoqrsquo in an Electric FieldElectric Field
QQqq
E =E = FFqq
E =E = FFqq
E =E = NewtonNewtonCoulombCoulomb
E =E = NNCC
Energy and WorkEnergy and Work
Energy and WorkEnergy and Work
++ --
It takes work to move It takes work to move the ldquo-rdquo chargethe ldquo-rdquo charge
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
++
qrsquoqrsquo
ΔΔV =V =
Work on Work on qrsquoqrsquo
qrsquoqrsquo
JoulJouleeCoulomCoulom
bb=== volt= volt
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
++
qrsquoqrsquo
ΔΔV = VV = VBB - V - VAA
VVAA VVBB
ldquoldquoPotential DifferencerdquoPotential DifferencerdquoVoltageVoltage
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
ΔΔV V = = Fd Fd
q q ΔΔV V = = Eqd Eqd
q q
E = E = F F q q
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
ΔΔV V = = Ed Ed
Example Example Two parallel plates are given Two parallel plates are given opposite charges A opposite charges A
voltmeter measures the voltmeter measures the electric potental differnece electric potental differnece to be 60V The plates are to be 60V The plates are 3ocm apart What is the 3ocm apart What is the magnitude of the electric magnitude of the electric
field between them field between them
- - - - - - - - - - - - - - - - - - - -
++++++++ ++++++++++++
EΔV
d
ΔV=600V D=0030m
ΔΔV V = = Ed Ed
= E = E ΔΔVVd d
= E = E
60V60V003003m m
20002000J(mJ(mmiddotC)= E middotC)= E
2000 2000 NNC = E C = E
CurrentCurrent
Flow of chargeFlow of charge
Charge - Coulomb(C) Charge - Coulomb(C) 624 X 10624 X 101818 electrons electrons
e ee e ee e e e e e eeee e
Leyden JarLeyden Jar
ConductorsConductors
Leyden JarLeyden Jar
++++
++++
++++------------ ----
--------
++++ ++++++++
------
CapacitorCapacitor
A capacitor is a passive electronic component that stores energy in the form of an electrostatic field
CapacitorCapacitor
Metal Plates
Insulating MaterialDielectric
CapacitorCapacitor
-+e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
CapacitorCapacitor
-- ---- -- -- ---- --
++++++++ ++++++++
CopperCopperZincZinc
--
CurrentCurrent
e ee e ee e e e e e eeee e
Number of electrons Number of electrons passing a point in a passing a point in a secondsecond
CurrentCurrent
Symbol - Symbol - II
Unit ndash Unit ndash Ampere (Amps)Ampere (Amps)
Amperes - Amperes - AA
ForceForce
e ee e ee e e e e e eeee e
VoltageVoltage
Potential DifferencePotential Difference
Electromotive Force (EMF)Electromotive Force (EMF)
VoltageVoltage
Symbol - Symbol - VV
Unit ndash Unit ndash VoltVolt
Volt - Volt - VV
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
High ResistanceHigh ResistanceInsulatorInsulator
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
Low ResistanceLow ResistanceConductorConductor
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
High and Low ResistanceHigh and Low ResistanceSemiConductorSemiConductor
ResistanceResistance
Symbol - Symbol - RR
Unit ndash Unit ndash OhmOhm
Ohm - Ohm - ΩΩ
Putting it all TogetherPutting it all Together
LoadSource
Path
Homework 1-1Homework 1-1
WorksheetWorksheetDue 9902Due 9902Test 9902Test 9902
Electric FieldsElectric Fields
A force field due to electric A force field due to electric chargescharges
EE
A force on a charge due to A force on a charge due to another chageanother chage
Electric Field Point ChargeElectric Field Point Charge
E =E = kqkqrr22
rr
Force on a charge lsquoqrsquo in an Force on a charge lsquoqrsquo in an Electric FieldElectric Field
QQqq
E =E = FFqq
E =E = FFqq
E =E = NewtonNewtonCoulombCoulomb
E =E = NNCC
Energy and WorkEnergy and Work
Energy and WorkEnergy and Work
++ --
It takes work to move It takes work to move the ldquo-rdquo chargethe ldquo-rdquo charge
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
++
qrsquoqrsquo
ΔΔV =V =
Work on Work on qrsquoqrsquo
qrsquoqrsquo
JoulJouleeCoulomCoulom
bb=== volt= volt
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
++
qrsquoqrsquo
ΔΔV = VV = VBB - V - VAA
VVAA VVBB
ldquoldquoPotential DifferencerdquoPotential DifferencerdquoVoltageVoltage
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
ΔΔV V = = Fd Fd
q q ΔΔV V = = Eqd Eqd
q q
E = E = F F q q
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
ΔΔV V = = Ed Ed
Example Example Two parallel plates are given Two parallel plates are given opposite charges A opposite charges A
voltmeter measures the voltmeter measures the electric potental differnece electric potental differnece to be 60V The plates are to be 60V The plates are 3ocm apart What is the 3ocm apart What is the magnitude of the electric magnitude of the electric
field between them field between them
- - - - - - - - - - - - - - - - - - - -
++++++++ ++++++++++++
EΔV
d
ΔV=600V D=0030m
ΔΔV V = = Ed Ed
= E = E ΔΔVVd d
= E = E
60V60V003003m m
20002000J(mJ(mmiddotC)= E middotC)= E
2000 2000 NNC = E C = E
CurrentCurrent
Flow of chargeFlow of charge
Charge - Coulomb(C) Charge - Coulomb(C) 624 X 10624 X 101818 electrons electrons
e ee e ee e e e e e eeee e
Leyden JarLeyden Jar
ConductorsConductors
Leyden JarLeyden Jar
++++
++++
++++------------ ----
--------
++++ ++++++++
------
CapacitorCapacitor
A capacitor is a passive electronic component that stores energy in the form of an electrostatic field
CapacitorCapacitor
Metal Plates
Insulating MaterialDielectric
CapacitorCapacitor
-+e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
CapacitorCapacitor
-- ---- -- -- ---- --
++++++++ ++++++++
CopperCopperZincZinc
--
CurrentCurrent
e ee e ee e e e e e eeee e
Number of electrons Number of electrons passing a point in a passing a point in a secondsecond
CurrentCurrent
Symbol - Symbol - II
Unit ndash Unit ndash Ampere (Amps)Ampere (Amps)
Amperes - Amperes - AA
ForceForce
e ee e ee e e e e e eeee e
VoltageVoltage
Potential DifferencePotential Difference
Electromotive Force (EMF)Electromotive Force (EMF)
VoltageVoltage
Symbol - Symbol - VV
Unit ndash Unit ndash VoltVolt
Volt - Volt - VV
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
High ResistanceHigh ResistanceInsulatorInsulator
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
Low ResistanceLow ResistanceConductorConductor
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
High and Low ResistanceHigh and Low ResistanceSemiConductorSemiConductor
ResistanceResistance
Symbol - Symbol - RR
Unit ndash Unit ndash OhmOhm
Ohm - Ohm - ΩΩ
Putting it all TogetherPutting it all Together
LoadSource
Path
Homework 1-1Homework 1-1
WorksheetWorksheetDue 9902Due 9902Test 9902Test 9902
Electric Field Point ChargeElectric Field Point Charge
E =E = kqkqrr22
rr
Force on a charge lsquoqrsquo in an Force on a charge lsquoqrsquo in an Electric FieldElectric Field
QQqq
E =E = FFqq
E =E = FFqq
E =E = NewtonNewtonCoulombCoulomb
E =E = NNCC
Energy and WorkEnergy and Work
Energy and WorkEnergy and Work
++ --
It takes work to move It takes work to move the ldquo-rdquo chargethe ldquo-rdquo charge
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
++
qrsquoqrsquo
ΔΔV =V =
Work on Work on qrsquoqrsquo
qrsquoqrsquo
JoulJouleeCoulomCoulom
bb=== volt= volt
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
++
qrsquoqrsquo
ΔΔV = VV = VBB - V - VAA
VVAA VVBB
ldquoldquoPotential DifferencerdquoPotential DifferencerdquoVoltageVoltage
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
ΔΔV V = = Fd Fd
q q ΔΔV V = = Eqd Eqd
q q
E = E = F F q q
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
ΔΔV V = = Ed Ed
Example Example Two parallel plates are given Two parallel plates are given opposite charges A opposite charges A
voltmeter measures the voltmeter measures the electric potental differnece electric potental differnece to be 60V The plates are to be 60V The plates are 3ocm apart What is the 3ocm apart What is the magnitude of the electric magnitude of the electric
field between them field between them
- - - - - - - - - - - - - - - - - - - -
++++++++ ++++++++++++
EΔV
d
ΔV=600V D=0030m
ΔΔV V = = Ed Ed
= E = E ΔΔVVd d
= E = E
60V60V003003m m
20002000J(mJ(mmiddotC)= E middotC)= E
2000 2000 NNC = E C = E
CurrentCurrent
Flow of chargeFlow of charge
Charge - Coulomb(C) Charge - Coulomb(C) 624 X 10624 X 101818 electrons electrons
e ee e ee e e e e e eeee e
Leyden JarLeyden Jar
ConductorsConductors
Leyden JarLeyden Jar
++++
++++
++++------------ ----
--------
++++ ++++++++
------
CapacitorCapacitor
A capacitor is a passive electronic component that stores energy in the form of an electrostatic field
CapacitorCapacitor
Metal Plates
Insulating MaterialDielectric
CapacitorCapacitor
-+e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
CapacitorCapacitor
-- ---- -- -- ---- --
++++++++ ++++++++
CopperCopperZincZinc
--
CurrentCurrent
e ee e ee e e e e e eeee e
Number of electrons Number of electrons passing a point in a passing a point in a secondsecond
CurrentCurrent
Symbol - Symbol - II
Unit ndash Unit ndash Ampere (Amps)Ampere (Amps)
Amperes - Amperes - AA
ForceForce
e ee e ee e e e e e eeee e
VoltageVoltage
Potential DifferencePotential Difference
Electromotive Force (EMF)Electromotive Force (EMF)
VoltageVoltage
Symbol - Symbol - VV
Unit ndash Unit ndash VoltVolt
Volt - Volt - VV
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
High ResistanceHigh ResistanceInsulatorInsulator
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
Low ResistanceLow ResistanceConductorConductor
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
High and Low ResistanceHigh and Low ResistanceSemiConductorSemiConductor
ResistanceResistance
Symbol - Symbol - RR
Unit ndash Unit ndash OhmOhm
Ohm - Ohm - ΩΩ
Putting it all TogetherPutting it all Together
LoadSource
Path
Homework 1-1Homework 1-1
WorksheetWorksheetDue 9902Due 9902Test 9902Test 9902
Force on a charge lsquoqrsquo in an Force on a charge lsquoqrsquo in an Electric FieldElectric Field
QQqq
E =E = FFqq
E =E = FFqq
E =E = NewtonNewtonCoulombCoulomb
E =E = NNCC
Energy and WorkEnergy and Work
Energy and WorkEnergy and Work
++ --
It takes work to move It takes work to move the ldquo-rdquo chargethe ldquo-rdquo charge
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
++
qrsquoqrsquo
ΔΔV =V =
Work on Work on qrsquoqrsquo
qrsquoqrsquo
JoulJouleeCoulomCoulom
bb=== volt= volt
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
++
qrsquoqrsquo
ΔΔV = VV = VBB - V - VAA
VVAA VVBB
ldquoldquoPotential DifferencerdquoPotential DifferencerdquoVoltageVoltage
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
ΔΔV V = = Fd Fd
q q ΔΔV V = = Eqd Eqd
q q
E = E = F F q q
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
ΔΔV V = = Ed Ed
Example Example Two parallel plates are given Two parallel plates are given opposite charges A opposite charges A
voltmeter measures the voltmeter measures the electric potental differnece electric potental differnece to be 60V The plates are to be 60V The plates are 3ocm apart What is the 3ocm apart What is the magnitude of the electric magnitude of the electric
field between them field between them
- - - - - - - - - - - - - - - - - - - -
++++++++ ++++++++++++
EΔV
d
ΔV=600V D=0030m
ΔΔV V = = Ed Ed
= E = E ΔΔVVd d
= E = E
60V60V003003m m
20002000J(mJ(mmiddotC)= E middotC)= E
2000 2000 NNC = E C = E
CurrentCurrent
Flow of chargeFlow of charge
Charge - Coulomb(C) Charge - Coulomb(C) 624 X 10624 X 101818 electrons electrons
e ee e ee e e e e e eeee e
Leyden JarLeyden Jar
ConductorsConductors
Leyden JarLeyden Jar
++++
++++
++++------------ ----
--------
++++ ++++++++
------
CapacitorCapacitor
A capacitor is a passive electronic component that stores energy in the form of an electrostatic field
CapacitorCapacitor
Metal Plates
Insulating MaterialDielectric
CapacitorCapacitor
-+e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
CapacitorCapacitor
-- ---- -- -- ---- --
++++++++ ++++++++
CopperCopperZincZinc
--
CurrentCurrent
e ee e ee e e e e e eeee e
Number of electrons Number of electrons passing a point in a passing a point in a secondsecond
CurrentCurrent
Symbol - Symbol - II
Unit ndash Unit ndash Ampere (Amps)Ampere (Amps)
Amperes - Amperes - AA
ForceForce
e ee e ee e e e e e eeee e
VoltageVoltage
Potential DifferencePotential Difference
Electromotive Force (EMF)Electromotive Force (EMF)
VoltageVoltage
Symbol - Symbol - VV
Unit ndash Unit ndash VoltVolt
Volt - Volt - VV
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
High ResistanceHigh ResistanceInsulatorInsulator
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
Low ResistanceLow ResistanceConductorConductor
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
High and Low ResistanceHigh and Low ResistanceSemiConductorSemiConductor
ResistanceResistance
Symbol - Symbol - RR
Unit ndash Unit ndash OhmOhm
Ohm - Ohm - ΩΩ
Putting it all TogetherPutting it all Together
LoadSource
Path
Homework 1-1Homework 1-1
WorksheetWorksheetDue 9902Due 9902Test 9902Test 9902
E =E = FFqq
E =E = NewtonNewtonCoulombCoulomb
E =E = NNCC
Energy and WorkEnergy and Work
Energy and WorkEnergy and Work
++ --
It takes work to move It takes work to move the ldquo-rdquo chargethe ldquo-rdquo charge
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
++
qrsquoqrsquo
ΔΔV =V =
Work on Work on qrsquoqrsquo
qrsquoqrsquo
JoulJouleeCoulomCoulom
bb=== volt= volt
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
++
qrsquoqrsquo
ΔΔV = VV = VBB - V - VAA
VVAA VVBB
ldquoldquoPotential DifferencerdquoPotential DifferencerdquoVoltageVoltage
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
ΔΔV V = = Fd Fd
q q ΔΔV V = = Eqd Eqd
q q
E = E = F F q q
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
ΔΔV V = = Ed Ed
Example Example Two parallel plates are given Two parallel plates are given opposite charges A opposite charges A
voltmeter measures the voltmeter measures the electric potental differnece electric potental differnece to be 60V The plates are to be 60V The plates are 3ocm apart What is the 3ocm apart What is the magnitude of the electric magnitude of the electric
field between them field between them
- - - - - - - - - - - - - - - - - - - -
++++++++ ++++++++++++
EΔV
d
ΔV=600V D=0030m
ΔΔV V = = Ed Ed
= E = E ΔΔVVd d
= E = E
60V60V003003m m
20002000J(mJ(mmiddotC)= E middotC)= E
2000 2000 NNC = E C = E
CurrentCurrent
Flow of chargeFlow of charge
Charge - Coulomb(C) Charge - Coulomb(C) 624 X 10624 X 101818 electrons electrons
e ee e ee e e e e e eeee e
Leyden JarLeyden Jar
ConductorsConductors
Leyden JarLeyden Jar
++++
++++
++++------------ ----
--------
++++ ++++++++
------
CapacitorCapacitor
A capacitor is a passive electronic component that stores energy in the form of an electrostatic field
CapacitorCapacitor
Metal Plates
Insulating MaterialDielectric
CapacitorCapacitor
-+e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
CapacitorCapacitor
-- ---- -- -- ---- --
++++++++ ++++++++
CopperCopperZincZinc
--
CurrentCurrent
e ee e ee e e e e e eeee e
Number of electrons Number of electrons passing a point in a passing a point in a secondsecond
CurrentCurrent
Symbol - Symbol - II
Unit ndash Unit ndash Ampere (Amps)Ampere (Amps)
Amperes - Amperes - AA
ForceForce
e ee e ee e e e e e eeee e
VoltageVoltage
Potential DifferencePotential Difference
Electromotive Force (EMF)Electromotive Force (EMF)
VoltageVoltage
Symbol - Symbol - VV
Unit ndash Unit ndash VoltVolt
Volt - Volt - VV
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
High ResistanceHigh ResistanceInsulatorInsulator
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
Low ResistanceLow ResistanceConductorConductor
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
High and Low ResistanceHigh and Low ResistanceSemiConductorSemiConductor
ResistanceResistance
Symbol - Symbol - RR
Unit ndash Unit ndash OhmOhm
Ohm - Ohm - ΩΩ
Putting it all TogetherPutting it all Together
LoadSource
Path
Homework 1-1Homework 1-1
WorksheetWorksheetDue 9902Due 9902Test 9902Test 9902
Energy and WorkEnergy and Work
Energy and WorkEnergy and Work
++ --
It takes work to move It takes work to move the ldquo-rdquo chargethe ldquo-rdquo charge
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
++
qrsquoqrsquo
ΔΔV =V =
Work on Work on qrsquoqrsquo
qrsquoqrsquo
JoulJouleeCoulomCoulom
bb=== volt= volt
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
++
qrsquoqrsquo
ΔΔV = VV = VBB - V - VAA
VVAA VVBB
ldquoldquoPotential DifferencerdquoPotential DifferencerdquoVoltageVoltage
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
ΔΔV V = = Fd Fd
q q ΔΔV V = = Eqd Eqd
q q
E = E = F F q q
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
ΔΔV V = = Ed Ed
Example Example Two parallel plates are given Two parallel plates are given opposite charges A opposite charges A
voltmeter measures the voltmeter measures the electric potental differnece electric potental differnece to be 60V The plates are to be 60V The plates are 3ocm apart What is the 3ocm apart What is the magnitude of the electric magnitude of the electric
field between them field between them
- - - - - - - - - - - - - - - - - - - -
++++++++ ++++++++++++
EΔV
d
ΔV=600V D=0030m
ΔΔV V = = Ed Ed
= E = E ΔΔVVd d
= E = E
60V60V003003m m
20002000J(mJ(mmiddotC)= E middotC)= E
2000 2000 NNC = E C = E
CurrentCurrent
Flow of chargeFlow of charge
Charge - Coulomb(C) Charge - Coulomb(C) 624 X 10624 X 101818 electrons electrons
e ee e ee e e e e e eeee e
Leyden JarLeyden Jar
ConductorsConductors
Leyden JarLeyden Jar
++++
++++
++++------------ ----
--------
++++ ++++++++
------
CapacitorCapacitor
A capacitor is a passive electronic component that stores energy in the form of an electrostatic field
CapacitorCapacitor
Metal Plates
Insulating MaterialDielectric
CapacitorCapacitor
-+e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
CapacitorCapacitor
-- ---- -- -- ---- --
++++++++ ++++++++
CopperCopperZincZinc
--
CurrentCurrent
e ee e ee e e e e e eeee e
Number of electrons Number of electrons passing a point in a passing a point in a secondsecond
CurrentCurrent
Symbol - Symbol - II
Unit ndash Unit ndash Ampere (Amps)Ampere (Amps)
Amperes - Amperes - AA
ForceForce
e ee e ee e e e e e eeee e
VoltageVoltage
Potential DifferencePotential Difference
Electromotive Force (EMF)Electromotive Force (EMF)
VoltageVoltage
Symbol - Symbol - VV
Unit ndash Unit ndash VoltVolt
Volt - Volt - VV
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
High ResistanceHigh ResistanceInsulatorInsulator
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
Low ResistanceLow ResistanceConductorConductor
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
High and Low ResistanceHigh and Low ResistanceSemiConductorSemiConductor
ResistanceResistance
Symbol - Symbol - RR
Unit ndash Unit ndash OhmOhm
Ohm - Ohm - ΩΩ
Putting it all TogetherPutting it all Together
LoadSource
Path
Homework 1-1Homework 1-1
WorksheetWorksheetDue 9902Due 9902Test 9902Test 9902
Energy and WorkEnergy and Work
++ --
It takes work to move It takes work to move the ldquo-rdquo chargethe ldquo-rdquo charge
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
++
qrsquoqrsquo
ΔΔV =V =
Work on Work on qrsquoqrsquo
qrsquoqrsquo
JoulJouleeCoulomCoulom
bb=== volt= volt
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
++
qrsquoqrsquo
ΔΔV = VV = VBB - V - VAA
VVAA VVBB
ldquoldquoPotential DifferencerdquoPotential DifferencerdquoVoltageVoltage
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
ΔΔV V = = Fd Fd
q q ΔΔV V = = Eqd Eqd
q q
E = E = F F q q
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
ΔΔV V = = Ed Ed
Example Example Two parallel plates are given Two parallel plates are given opposite charges A opposite charges A
voltmeter measures the voltmeter measures the electric potental differnece electric potental differnece to be 60V The plates are to be 60V The plates are 3ocm apart What is the 3ocm apart What is the magnitude of the electric magnitude of the electric
field between them field between them
- - - - - - - - - - - - - - - - - - - -
++++++++ ++++++++++++
EΔV
d
ΔV=600V D=0030m
ΔΔV V = = Ed Ed
= E = E ΔΔVVd d
= E = E
60V60V003003m m
20002000J(mJ(mmiddotC)= E middotC)= E
2000 2000 NNC = E C = E
CurrentCurrent
Flow of chargeFlow of charge
Charge - Coulomb(C) Charge - Coulomb(C) 624 X 10624 X 101818 electrons electrons
e ee e ee e e e e e eeee e
Leyden JarLeyden Jar
ConductorsConductors
Leyden JarLeyden Jar
++++
++++
++++------------ ----
--------
++++ ++++++++
------
CapacitorCapacitor
A capacitor is a passive electronic component that stores energy in the form of an electrostatic field
CapacitorCapacitor
Metal Plates
Insulating MaterialDielectric
CapacitorCapacitor
-+e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
CapacitorCapacitor
-- ---- -- -- ---- --
++++++++ ++++++++
CopperCopperZincZinc
--
CurrentCurrent
e ee e ee e e e e e eeee e
Number of electrons Number of electrons passing a point in a passing a point in a secondsecond
CurrentCurrent
Symbol - Symbol - II
Unit ndash Unit ndash Ampere (Amps)Ampere (Amps)
Amperes - Amperes - AA
ForceForce
e ee e ee e e e e e eeee e
VoltageVoltage
Potential DifferencePotential Difference
Electromotive Force (EMF)Electromotive Force (EMF)
VoltageVoltage
Symbol - Symbol - VV
Unit ndash Unit ndash VoltVolt
Volt - Volt - VV
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
High ResistanceHigh ResistanceInsulatorInsulator
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
Low ResistanceLow ResistanceConductorConductor
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
High and Low ResistanceHigh and Low ResistanceSemiConductorSemiConductor
ResistanceResistance
Symbol - Symbol - RR
Unit ndash Unit ndash OhmOhm
Ohm - Ohm - ΩΩ
Putting it all TogetherPutting it all Together
LoadSource
Path
Homework 1-1Homework 1-1
WorksheetWorksheetDue 9902Due 9902Test 9902Test 9902
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
++
qrsquoqrsquo
ΔΔV =V =
Work on Work on qrsquoqrsquo
qrsquoqrsquo
JoulJouleeCoulomCoulom
bb=== volt= volt
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
++
qrsquoqrsquo
ΔΔV = VV = VBB - V - VAA
VVAA VVBB
ldquoldquoPotential DifferencerdquoPotential DifferencerdquoVoltageVoltage
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
ΔΔV V = = Fd Fd
q q ΔΔV V = = Eqd Eqd
q q
E = E = F F q q
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
ΔΔV V = = Ed Ed
Example Example Two parallel plates are given Two parallel plates are given opposite charges A opposite charges A
voltmeter measures the voltmeter measures the electric potental differnece electric potental differnece to be 60V The plates are to be 60V The plates are 3ocm apart What is the 3ocm apart What is the magnitude of the electric magnitude of the electric
field between them field between them
- - - - - - - - - - - - - - - - - - - -
++++++++ ++++++++++++
EΔV
d
ΔV=600V D=0030m
ΔΔV V = = Ed Ed
= E = E ΔΔVVd d
= E = E
60V60V003003m m
20002000J(mJ(mmiddotC)= E middotC)= E
2000 2000 NNC = E C = E
CurrentCurrent
Flow of chargeFlow of charge
Charge - Coulomb(C) Charge - Coulomb(C) 624 X 10624 X 101818 electrons electrons
e ee e ee e e e e e eeee e
Leyden JarLeyden Jar
ConductorsConductors
Leyden JarLeyden Jar
++++
++++
++++------------ ----
--------
++++ ++++++++
------
CapacitorCapacitor
A capacitor is a passive electronic component that stores energy in the form of an electrostatic field
CapacitorCapacitor
Metal Plates
Insulating MaterialDielectric
CapacitorCapacitor
-+e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
CapacitorCapacitor
-- ---- -- -- ---- --
++++++++ ++++++++
CopperCopperZincZinc
--
CurrentCurrent
e ee e ee e e e e e eeee e
Number of electrons Number of electrons passing a point in a passing a point in a secondsecond
CurrentCurrent
Symbol - Symbol - II
Unit ndash Unit ndash Ampere (Amps)Ampere (Amps)
Amperes - Amperes - AA
ForceForce
e ee e ee e e e e e eeee e
VoltageVoltage
Potential DifferencePotential Difference
Electromotive Force (EMF)Electromotive Force (EMF)
VoltageVoltage
Symbol - Symbol - VV
Unit ndash Unit ndash VoltVolt
Volt - Volt - VV
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
High ResistanceHigh ResistanceInsulatorInsulator
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
Low ResistanceLow ResistanceConductorConductor
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
High and Low ResistanceHigh and Low ResistanceSemiConductorSemiConductor
ResistanceResistance
Symbol - Symbol - RR
Unit ndash Unit ndash OhmOhm
Ohm - Ohm - ΩΩ
Putting it all TogetherPutting it all Together
LoadSource
Path
Homework 1-1Homework 1-1
WorksheetWorksheetDue 9902Due 9902Test 9902Test 9902
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
++
qrsquoqrsquo
ΔΔV = VV = VBB - V - VAA
VVAA VVBB
ldquoldquoPotential DifferencerdquoPotential DifferencerdquoVoltageVoltage
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
ΔΔV V = = Fd Fd
q q ΔΔV V = = Eqd Eqd
q q
E = E = F F q q
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
ΔΔV V = = Ed Ed
Example Example Two parallel plates are given Two parallel plates are given opposite charges A opposite charges A
voltmeter measures the voltmeter measures the electric potental differnece electric potental differnece to be 60V The plates are to be 60V The plates are 3ocm apart What is the 3ocm apart What is the magnitude of the electric magnitude of the electric
field between them field between them
- - - - - - - - - - - - - - - - - - - -
++++++++ ++++++++++++
EΔV
d
ΔV=600V D=0030m
ΔΔV V = = Ed Ed
= E = E ΔΔVVd d
= E = E
60V60V003003m m
20002000J(mJ(mmiddotC)= E middotC)= E
2000 2000 NNC = E C = E
CurrentCurrent
Flow of chargeFlow of charge
Charge - Coulomb(C) Charge - Coulomb(C) 624 X 10624 X 101818 electrons electrons
e ee e ee e e e e e eeee e
Leyden JarLeyden Jar
ConductorsConductors
Leyden JarLeyden Jar
++++
++++
++++------------ ----
--------
++++ ++++++++
------
CapacitorCapacitor
A capacitor is a passive electronic component that stores energy in the form of an electrostatic field
CapacitorCapacitor
Metal Plates
Insulating MaterialDielectric
CapacitorCapacitor
-+e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
CapacitorCapacitor
-- ---- -- -- ---- --
++++++++ ++++++++
CopperCopperZincZinc
--
CurrentCurrent
e ee e ee e e e e e eeee e
Number of electrons Number of electrons passing a point in a passing a point in a secondsecond
CurrentCurrent
Symbol - Symbol - II
Unit ndash Unit ndash Ampere (Amps)Ampere (Amps)
Amperes - Amperes - AA
ForceForce
e ee e ee e e e e e eeee e
VoltageVoltage
Potential DifferencePotential Difference
Electromotive Force (EMF)Electromotive Force (EMF)
VoltageVoltage
Symbol - Symbol - VV
Unit ndash Unit ndash VoltVolt
Volt - Volt - VV
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
High ResistanceHigh ResistanceInsulatorInsulator
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
Low ResistanceLow ResistanceConductorConductor
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
High and Low ResistanceHigh and Low ResistanceSemiConductorSemiConductor
ResistanceResistance
Symbol - Symbol - RR
Unit ndash Unit ndash OhmOhm
Ohm - Ohm - ΩΩ
Putting it all TogetherPutting it all Together
LoadSource
Path
Homework 1-1Homework 1-1
WorksheetWorksheetDue 9902Due 9902Test 9902Test 9902
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
ΔΔV V = = Fd Fd
q q ΔΔV V = = Eqd Eqd
q q
E = E = F F q q
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
ΔΔV V = = Ed Ed
Example Example Two parallel plates are given Two parallel plates are given opposite charges A opposite charges A
voltmeter measures the voltmeter measures the electric potental differnece electric potental differnece to be 60V The plates are to be 60V The plates are 3ocm apart What is the 3ocm apart What is the magnitude of the electric magnitude of the electric
field between them field between them
- - - - - - - - - - - - - - - - - - - -
++++++++ ++++++++++++
EΔV
d
ΔV=600V D=0030m
ΔΔV V = = Ed Ed
= E = E ΔΔVVd d
= E = E
60V60V003003m m
20002000J(mJ(mmiddotC)= E middotC)= E
2000 2000 NNC = E C = E
CurrentCurrent
Flow of chargeFlow of charge
Charge - Coulomb(C) Charge - Coulomb(C) 624 X 10624 X 101818 electrons electrons
e ee e ee e e e e e eeee e
Leyden JarLeyden Jar
ConductorsConductors
Leyden JarLeyden Jar
++++
++++
++++------------ ----
--------
++++ ++++++++
------
CapacitorCapacitor
A capacitor is a passive electronic component that stores energy in the form of an electrostatic field
CapacitorCapacitor
Metal Plates
Insulating MaterialDielectric
CapacitorCapacitor
-+e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
CapacitorCapacitor
-- ---- -- -- ---- --
++++++++ ++++++++
CopperCopperZincZinc
--
CurrentCurrent
e ee e ee e e e e e eeee e
Number of electrons Number of electrons passing a point in a passing a point in a secondsecond
CurrentCurrent
Symbol - Symbol - II
Unit ndash Unit ndash Ampere (Amps)Ampere (Amps)
Amperes - Amperes - AA
ForceForce
e ee e ee e e e e e eeee e
VoltageVoltage
Potential DifferencePotential Difference
Electromotive Force (EMF)Electromotive Force (EMF)
VoltageVoltage
Symbol - Symbol - VV
Unit ndash Unit ndash VoltVolt
Volt - Volt - VV
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
High ResistanceHigh ResistanceInsulatorInsulator
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
Low ResistanceLow ResistanceConductorConductor
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
High and Low ResistanceHigh and Low ResistanceSemiConductorSemiConductor
ResistanceResistance
Symbol - Symbol - RR
Unit ndash Unit ndash OhmOhm
Ohm - Ohm - ΩΩ
Putting it all TogetherPutting it all Together
LoadSource
Path
Homework 1-1Homework 1-1
WorksheetWorksheetDue 9902Due 9902Test 9902Test 9902
Electric Potential (Energy)Electric Potential (Energy)VoltageVoltage
ΔΔV V = = Ed Ed
Example Example Two parallel plates are given Two parallel plates are given opposite charges A opposite charges A
voltmeter measures the voltmeter measures the electric potental differnece electric potental differnece to be 60V The plates are to be 60V The plates are 3ocm apart What is the 3ocm apart What is the magnitude of the electric magnitude of the electric
field between them field between them
- - - - - - - - - - - - - - - - - - - -
++++++++ ++++++++++++
EΔV
d
ΔV=600V D=0030m
ΔΔV V = = Ed Ed
= E = E ΔΔVVd d
= E = E
60V60V003003m m
20002000J(mJ(mmiddotC)= E middotC)= E
2000 2000 NNC = E C = E
CurrentCurrent
Flow of chargeFlow of charge
Charge - Coulomb(C) Charge - Coulomb(C) 624 X 10624 X 101818 electrons electrons
e ee e ee e e e e e eeee e
Leyden JarLeyden Jar
ConductorsConductors
Leyden JarLeyden Jar
++++
++++
++++------------ ----
--------
++++ ++++++++
------
CapacitorCapacitor
A capacitor is a passive electronic component that stores energy in the form of an electrostatic field
CapacitorCapacitor
Metal Plates
Insulating MaterialDielectric
CapacitorCapacitor
-+e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
CapacitorCapacitor
-- ---- -- -- ---- --
++++++++ ++++++++
CopperCopperZincZinc
--
CurrentCurrent
e ee e ee e e e e e eeee e
Number of electrons Number of electrons passing a point in a passing a point in a secondsecond
CurrentCurrent
Symbol - Symbol - II
Unit ndash Unit ndash Ampere (Amps)Ampere (Amps)
Amperes - Amperes - AA
ForceForce
e ee e ee e e e e e eeee e
VoltageVoltage
Potential DifferencePotential Difference
Electromotive Force (EMF)Electromotive Force (EMF)
VoltageVoltage
Symbol - Symbol - VV
Unit ndash Unit ndash VoltVolt
Volt - Volt - VV
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
High ResistanceHigh ResistanceInsulatorInsulator
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
Low ResistanceLow ResistanceConductorConductor
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
High and Low ResistanceHigh and Low ResistanceSemiConductorSemiConductor
ResistanceResistance
Symbol - Symbol - RR
Unit ndash Unit ndash OhmOhm
Ohm - Ohm - ΩΩ
Putting it all TogetherPutting it all Together
LoadSource
Path
Homework 1-1Homework 1-1
WorksheetWorksheetDue 9902Due 9902Test 9902Test 9902
Example Example Two parallel plates are given Two parallel plates are given opposite charges A opposite charges A
voltmeter measures the voltmeter measures the electric potental differnece electric potental differnece to be 60V The plates are to be 60V The plates are 3ocm apart What is the 3ocm apart What is the magnitude of the electric magnitude of the electric
field between them field between them
- - - - - - - - - - - - - - - - - - - -
++++++++ ++++++++++++
EΔV
d
ΔV=600V D=0030m
ΔΔV V = = Ed Ed
= E = E ΔΔVVd d
= E = E
60V60V003003m m
20002000J(mJ(mmiddotC)= E middotC)= E
2000 2000 NNC = E C = E
CurrentCurrent
Flow of chargeFlow of charge
Charge - Coulomb(C) Charge - Coulomb(C) 624 X 10624 X 101818 electrons electrons
e ee e ee e e e e e eeee e
Leyden JarLeyden Jar
ConductorsConductors
Leyden JarLeyden Jar
++++
++++
++++------------ ----
--------
++++ ++++++++
------
CapacitorCapacitor
A capacitor is a passive electronic component that stores energy in the form of an electrostatic field
CapacitorCapacitor
Metal Plates
Insulating MaterialDielectric
CapacitorCapacitor
-+e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
CapacitorCapacitor
-- ---- -- -- ---- --
++++++++ ++++++++
CopperCopperZincZinc
--
CurrentCurrent
e ee e ee e e e e e eeee e
Number of electrons Number of electrons passing a point in a passing a point in a secondsecond
CurrentCurrent
Symbol - Symbol - II
Unit ndash Unit ndash Ampere (Amps)Ampere (Amps)
Amperes - Amperes - AA
ForceForce
e ee e ee e e e e e eeee e
VoltageVoltage
Potential DifferencePotential Difference
Electromotive Force (EMF)Electromotive Force (EMF)
VoltageVoltage
Symbol - Symbol - VV
Unit ndash Unit ndash VoltVolt
Volt - Volt - VV
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
High ResistanceHigh ResistanceInsulatorInsulator
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
Low ResistanceLow ResistanceConductorConductor
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
High and Low ResistanceHigh and Low ResistanceSemiConductorSemiConductor
ResistanceResistance
Symbol - Symbol - RR
Unit ndash Unit ndash OhmOhm
Ohm - Ohm - ΩΩ
Putting it all TogetherPutting it all Together
LoadSource
Path
Homework 1-1Homework 1-1
WorksheetWorksheetDue 9902Due 9902Test 9902Test 9902
- - - - - - - - - - - - - - - - - - - -
++++++++ ++++++++++++
EΔV
d
ΔV=600V D=0030m
ΔΔV V = = Ed Ed
= E = E ΔΔVVd d
= E = E
60V60V003003m m
20002000J(mJ(mmiddotC)= E middotC)= E
2000 2000 NNC = E C = E
CurrentCurrent
Flow of chargeFlow of charge
Charge - Coulomb(C) Charge - Coulomb(C) 624 X 10624 X 101818 electrons electrons
e ee e ee e e e e e eeee e
Leyden JarLeyden Jar
ConductorsConductors
Leyden JarLeyden Jar
++++
++++
++++------------ ----
--------
++++ ++++++++
------
CapacitorCapacitor
A capacitor is a passive electronic component that stores energy in the form of an electrostatic field
CapacitorCapacitor
Metal Plates
Insulating MaterialDielectric
CapacitorCapacitor
-+e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
CapacitorCapacitor
-- ---- -- -- ---- --
++++++++ ++++++++
CopperCopperZincZinc
--
CurrentCurrent
e ee e ee e e e e e eeee e
Number of electrons Number of electrons passing a point in a passing a point in a secondsecond
CurrentCurrent
Symbol - Symbol - II
Unit ndash Unit ndash Ampere (Amps)Ampere (Amps)
Amperes - Amperes - AA
ForceForce
e ee e ee e e e e e eeee e
VoltageVoltage
Potential DifferencePotential Difference
Electromotive Force (EMF)Electromotive Force (EMF)
VoltageVoltage
Symbol - Symbol - VV
Unit ndash Unit ndash VoltVolt
Volt - Volt - VV
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
High ResistanceHigh ResistanceInsulatorInsulator
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
Low ResistanceLow ResistanceConductorConductor
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
High and Low ResistanceHigh and Low ResistanceSemiConductorSemiConductor
ResistanceResistance
Symbol - Symbol - RR
Unit ndash Unit ndash OhmOhm
Ohm - Ohm - ΩΩ
Putting it all TogetherPutting it all Together
LoadSource
Path
Homework 1-1Homework 1-1
WorksheetWorksheetDue 9902Due 9902Test 9902Test 9902
ΔΔV V = = Ed Ed
= E = E ΔΔVVd d
= E = E
60V60V003003m m
20002000J(mJ(mmiddotC)= E middotC)= E
2000 2000 NNC = E C = E
CurrentCurrent
Flow of chargeFlow of charge
Charge - Coulomb(C) Charge - Coulomb(C) 624 X 10624 X 101818 electrons electrons
e ee e ee e e e e e eeee e
Leyden JarLeyden Jar
ConductorsConductors
Leyden JarLeyden Jar
++++
++++
++++------------ ----
--------
++++ ++++++++
------
CapacitorCapacitor
A capacitor is a passive electronic component that stores energy in the form of an electrostatic field
CapacitorCapacitor
Metal Plates
Insulating MaterialDielectric
CapacitorCapacitor
-+e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
CapacitorCapacitor
-- ---- -- -- ---- --
++++++++ ++++++++
CopperCopperZincZinc
--
CurrentCurrent
e ee e ee e e e e e eeee e
Number of electrons Number of electrons passing a point in a passing a point in a secondsecond
CurrentCurrent
Symbol - Symbol - II
Unit ndash Unit ndash Ampere (Amps)Ampere (Amps)
Amperes - Amperes - AA
ForceForce
e ee e ee e e e e e eeee e
VoltageVoltage
Potential DifferencePotential Difference
Electromotive Force (EMF)Electromotive Force (EMF)
VoltageVoltage
Symbol - Symbol - VV
Unit ndash Unit ndash VoltVolt
Volt - Volt - VV
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
High ResistanceHigh ResistanceInsulatorInsulator
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
Low ResistanceLow ResistanceConductorConductor
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
High and Low ResistanceHigh and Low ResistanceSemiConductorSemiConductor
ResistanceResistance
Symbol - Symbol - RR
Unit ndash Unit ndash OhmOhm
Ohm - Ohm - ΩΩ
Putting it all TogetherPutting it all Together
LoadSource
Path
Homework 1-1Homework 1-1
WorksheetWorksheetDue 9902Due 9902Test 9902Test 9902
20002000J(mJ(mmiddotC)= E middotC)= E
2000 2000 NNC = E C = E
CurrentCurrent
Flow of chargeFlow of charge
Charge - Coulomb(C) Charge - Coulomb(C) 624 X 10624 X 101818 electrons electrons
e ee e ee e e e e e eeee e
Leyden JarLeyden Jar
ConductorsConductors
Leyden JarLeyden Jar
++++
++++
++++------------ ----
--------
++++ ++++++++
------
CapacitorCapacitor
A capacitor is a passive electronic component that stores energy in the form of an electrostatic field
CapacitorCapacitor
Metal Plates
Insulating MaterialDielectric
CapacitorCapacitor
-+e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
CapacitorCapacitor
-- ---- -- -- ---- --
++++++++ ++++++++
CopperCopperZincZinc
--
CurrentCurrent
e ee e ee e e e e e eeee e
Number of electrons Number of electrons passing a point in a passing a point in a secondsecond
CurrentCurrent
Symbol - Symbol - II
Unit ndash Unit ndash Ampere (Amps)Ampere (Amps)
Amperes - Amperes - AA
ForceForce
e ee e ee e e e e e eeee e
VoltageVoltage
Potential DifferencePotential Difference
Electromotive Force (EMF)Electromotive Force (EMF)
VoltageVoltage
Symbol - Symbol - VV
Unit ndash Unit ndash VoltVolt
Volt - Volt - VV
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
High ResistanceHigh ResistanceInsulatorInsulator
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
Low ResistanceLow ResistanceConductorConductor
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
High and Low ResistanceHigh and Low ResistanceSemiConductorSemiConductor
ResistanceResistance
Symbol - Symbol - RR
Unit ndash Unit ndash OhmOhm
Ohm - Ohm - ΩΩ
Putting it all TogetherPutting it all Together
LoadSource
Path
Homework 1-1Homework 1-1
WorksheetWorksheetDue 9902Due 9902Test 9902Test 9902
CurrentCurrent
Flow of chargeFlow of charge
Charge - Coulomb(C) Charge - Coulomb(C) 624 X 10624 X 101818 electrons electrons
e ee e ee e e e e e eeee e
Leyden JarLeyden Jar
ConductorsConductors
Leyden JarLeyden Jar
++++
++++
++++------------ ----
--------
++++ ++++++++
------
CapacitorCapacitor
A capacitor is a passive electronic component that stores energy in the form of an electrostatic field
CapacitorCapacitor
Metal Plates
Insulating MaterialDielectric
CapacitorCapacitor
-+e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
CapacitorCapacitor
-- ---- -- -- ---- --
++++++++ ++++++++
CopperCopperZincZinc
--
CurrentCurrent
e ee e ee e e e e e eeee e
Number of electrons Number of electrons passing a point in a passing a point in a secondsecond
CurrentCurrent
Symbol - Symbol - II
Unit ndash Unit ndash Ampere (Amps)Ampere (Amps)
Amperes - Amperes - AA
ForceForce
e ee e ee e e e e e eeee e
VoltageVoltage
Potential DifferencePotential Difference
Electromotive Force (EMF)Electromotive Force (EMF)
VoltageVoltage
Symbol - Symbol - VV
Unit ndash Unit ndash VoltVolt
Volt - Volt - VV
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
High ResistanceHigh ResistanceInsulatorInsulator
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
Low ResistanceLow ResistanceConductorConductor
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
High and Low ResistanceHigh and Low ResistanceSemiConductorSemiConductor
ResistanceResistance
Symbol - Symbol - RR
Unit ndash Unit ndash OhmOhm
Ohm - Ohm - ΩΩ
Putting it all TogetherPutting it all Together
LoadSource
Path
Homework 1-1Homework 1-1
WorksheetWorksheetDue 9902Due 9902Test 9902Test 9902
Leyden JarLeyden Jar
ConductorsConductors
Leyden JarLeyden Jar
++++
++++
++++------------ ----
--------
++++ ++++++++
------
CapacitorCapacitor
A capacitor is a passive electronic component that stores energy in the form of an electrostatic field
CapacitorCapacitor
Metal Plates
Insulating MaterialDielectric
CapacitorCapacitor
-+e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
CapacitorCapacitor
-- ---- -- -- ---- --
++++++++ ++++++++
CopperCopperZincZinc
--
CurrentCurrent
e ee e ee e e e e e eeee e
Number of electrons Number of electrons passing a point in a passing a point in a secondsecond
CurrentCurrent
Symbol - Symbol - II
Unit ndash Unit ndash Ampere (Amps)Ampere (Amps)
Amperes - Amperes - AA
ForceForce
e ee e ee e e e e e eeee e
VoltageVoltage
Potential DifferencePotential Difference
Electromotive Force (EMF)Electromotive Force (EMF)
VoltageVoltage
Symbol - Symbol - VV
Unit ndash Unit ndash VoltVolt
Volt - Volt - VV
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
High ResistanceHigh ResistanceInsulatorInsulator
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
Low ResistanceLow ResistanceConductorConductor
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
High and Low ResistanceHigh and Low ResistanceSemiConductorSemiConductor
ResistanceResistance
Symbol - Symbol - RR
Unit ndash Unit ndash OhmOhm
Ohm - Ohm - ΩΩ
Putting it all TogetherPutting it all Together
LoadSource
Path
Homework 1-1Homework 1-1
WorksheetWorksheetDue 9902Due 9902Test 9902Test 9902
Leyden JarLeyden Jar
++++
++++
++++------------ ----
--------
++++ ++++++++
------
CapacitorCapacitor
A capacitor is a passive electronic component that stores energy in the form of an electrostatic field
CapacitorCapacitor
Metal Plates
Insulating MaterialDielectric
CapacitorCapacitor
-+e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
CapacitorCapacitor
-- ---- -- -- ---- --
++++++++ ++++++++
CopperCopperZincZinc
--
CurrentCurrent
e ee e ee e e e e e eeee e
Number of electrons Number of electrons passing a point in a passing a point in a secondsecond
CurrentCurrent
Symbol - Symbol - II
Unit ndash Unit ndash Ampere (Amps)Ampere (Amps)
Amperes - Amperes - AA
ForceForce
e ee e ee e e e e e eeee e
VoltageVoltage
Potential DifferencePotential Difference
Electromotive Force (EMF)Electromotive Force (EMF)
VoltageVoltage
Symbol - Symbol - VV
Unit ndash Unit ndash VoltVolt
Volt - Volt - VV
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
High ResistanceHigh ResistanceInsulatorInsulator
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
Low ResistanceLow ResistanceConductorConductor
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
High and Low ResistanceHigh and Low ResistanceSemiConductorSemiConductor
ResistanceResistance
Symbol - Symbol - RR
Unit ndash Unit ndash OhmOhm
Ohm - Ohm - ΩΩ
Putting it all TogetherPutting it all Together
LoadSource
Path
Homework 1-1Homework 1-1
WorksheetWorksheetDue 9902Due 9902Test 9902Test 9902
CapacitorCapacitor
A capacitor is a passive electronic component that stores energy in the form of an electrostatic field
CapacitorCapacitor
Metal Plates
Insulating MaterialDielectric
CapacitorCapacitor
-+e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
CapacitorCapacitor
-- ---- -- -- ---- --
++++++++ ++++++++
CopperCopperZincZinc
--
CurrentCurrent
e ee e ee e e e e e eeee e
Number of electrons Number of electrons passing a point in a passing a point in a secondsecond
CurrentCurrent
Symbol - Symbol - II
Unit ndash Unit ndash Ampere (Amps)Ampere (Amps)
Amperes - Amperes - AA
ForceForce
e ee e ee e e e e e eeee e
VoltageVoltage
Potential DifferencePotential Difference
Electromotive Force (EMF)Electromotive Force (EMF)
VoltageVoltage
Symbol - Symbol - VV
Unit ndash Unit ndash VoltVolt
Volt - Volt - VV
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
High ResistanceHigh ResistanceInsulatorInsulator
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
Low ResistanceLow ResistanceConductorConductor
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
High and Low ResistanceHigh and Low ResistanceSemiConductorSemiConductor
ResistanceResistance
Symbol - Symbol - RR
Unit ndash Unit ndash OhmOhm
Ohm - Ohm - ΩΩ
Putting it all TogetherPutting it all Together
LoadSource
Path
Homework 1-1Homework 1-1
WorksheetWorksheetDue 9902Due 9902Test 9902Test 9902
CapacitorCapacitor
Metal Plates
Insulating MaterialDielectric
CapacitorCapacitor
-+e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
CapacitorCapacitor
-- ---- -- -- ---- --
++++++++ ++++++++
CopperCopperZincZinc
--
CurrentCurrent
e ee e ee e e e e e eeee e
Number of electrons Number of electrons passing a point in a passing a point in a secondsecond
CurrentCurrent
Symbol - Symbol - II
Unit ndash Unit ndash Ampere (Amps)Ampere (Amps)
Amperes - Amperes - AA
ForceForce
e ee e ee e e e e e eeee e
VoltageVoltage
Potential DifferencePotential Difference
Electromotive Force (EMF)Electromotive Force (EMF)
VoltageVoltage
Symbol - Symbol - VV
Unit ndash Unit ndash VoltVolt
Volt - Volt - VV
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
High ResistanceHigh ResistanceInsulatorInsulator
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
Low ResistanceLow ResistanceConductorConductor
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
High and Low ResistanceHigh and Low ResistanceSemiConductorSemiConductor
ResistanceResistance
Symbol - Symbol - RR
Unit ndash Unit ndash OhmOhm
Ohm - Ohm - ΩΩ
Putting it all TogetherPutting it all Together
LoadSource
Path
Homework 1-1Homework 1-1
WorksheetWorksheetDue 9902Due 9902Test 9902Test 9902
CapacitorCapacitor
-+e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
e-
CapacitorCapacitor
-- ---- -- -- ---- --
++++++++ ++++++++
CopperCopperZincZinc
--
CurrentCurrent
e ee e ee e e e e e eeee e
Number of electrons Number of electrons passing a point in a passing a point in a secondsecond
CurrentCurrent
Symbol - Symbol - II
Unit ndash Unit ndash Ampere (Amps)Ampere (Amps)
Amperes - Amperes - AA
ForceForce
e ee e ee e e e e e eeee e
VoltageVoltage
Potential DifferencePotential Difference
Electromotive Force (EMF)Electromotive Force (EMF)
VoltageVoltage
Symbol - Symbol - VV
Unit ndash Unit ndash VoltVolt
Volt - Volt - VV
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
High ResistanceHigh ResistanceInsulatorInsulator
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
Low ResistanceLow ResistanceConductorConductor
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
High and Low ResistanceHigh and Low ResistanceSemiConductorSemiConductor
ResistanceResistance
Symbol - Symbol - RR
Unit ndash Unit ndash OhmOhm
Ohm - Ohm - ΩΩ
Putting it all TogetherPutting it all Together
LoadSource
Path
Homework 1-1Homework 1-1
WorksheetWorksheetDue 9902Due 9902Test 9902Test 9902
CapacitorCapacitor
-- ---- -- -- ---- --
++++++++ ++++++++
CopperCopperZincZinc
--
CurrentCurrent
e ee e ee e e e e e eeee e
Number of electrons Number of electrons passing a point in a passing a point in a secondsecond
CurrentCurrent
Symbol - Symbol - II
Unit ndash Unit ndash Ampere (Amps)Ampere (Amps)
Amperes - Amperes - AA
ForceForce
e ee e ee e e e e e eeee e
VoltageVoltage
Potential DifferencePotential Difference
Electromotive Force (EMF)Electromotive Force (EMF)
VoltageVoltage
Symbol - Symbol - VV
Unit ndash Unit ndash VoltVolt
Volt - Volt - VV
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
High ResistanceHigh ResistanceInsulatorInsulator
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
Low ResistanceLow ResistanceConductorConductor
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
High and Low ResistanceHigh and Low ResistanceSemiConductorSemiConductor
ResistanceResistance
Symbol - Symbol - RR
Unit ndash Unit ndash OhmOhm
Ohm - Ohm - ΩΩ
Putting it all TogetherPutting it all Together
LoadSource
Path
Homework 1-1Homework 1-1
WorksheetWorksheetDue 9902Due 9902Test 9902Test 9902
CopperCopperZincZinc
--
CurrentCurrent
e ee e ee e e e e e eeee e
Number of electrons Number of electrons passing a point in a passing a point in a secondsecond
CurrentCurrent
Symbol - Symbol - II
Unit ndash Unit ndash Ampere (Amps)Ampere (Amps)
Amperes - Amperes - AA
ForceForce
e ee e ee e e e e e eeee e
VoltageVoltage
Potential DifferencePotential Difference
Electromotive Force (EMF)Electromotive Force (EMF)
VoltageVoltage
Symbol - Symbol - VV
Unit ndash Unit ndash VoltVolt
Volt - Volt - VV
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
High ResistanceHigh ResistanceInsulatorInsulator
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
Low ResistanceLow ResistanceConductorConductor
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
High and Low ResistanceHigh and Low ResistanceSemiConductorSemiConductor
ResistanceResistance
Symbol - Symbol - RR
Unit ndash Unit ndash OhmOhm
Ohm - Ohm - ΩΩ
Putting it all TogetherPutting it all Together
LoadSource
Path
Homework 1-1Homework 1-1
WorksheetWorksheetDue 9902Due 9902Test 9902Test 9902
CurrentCurrent
e ee e ee e e e e e eeee e
Number of electrons Number of electrons passing a point in a passing a point in a secondsecond
CurrentCurrent
Symbol - Symbol - II
Unit ndash Unit ndash Ampere (Amps)Ampere (Amps)
Amperes - Amperes - AA
ForceForce
e ee e ee e e e e e eeee e
VoltageVoltage
Potential DifferencePotential Difference
Electromotive Force (EMF)Electromotive Force (EMF)
VoltageVoltage
Symbol - Symbol - VV
Unit ndash Unit ndash VoltVolt
Volt - Volt - VV
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
High ResistanceHigh ResistanceInsulatorInsulator
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
Low ResistanceLow ResistanceConductorConductor
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
High and Low ResistanceHigh and Low ResistanceSemiConductorSemiConductor
ResistanceResistance
Symbol - Symbol - RR
Unit ndash Unit ndash OhmOhm
Ohm - Ohm - ΩΩ
Putting it all TogetherPutting it all Together
LoadSource
Path
Homework 1-1Homework 1-1
WorksheetWorksheetDue 9902Due 9902Test 9902Test 9902
CurrentCurrent
Symbol - Symbol - II
Unit ndash Unit ndash Ampere (Amps)Ampere (Amps)
Amperes - Amperes - AA
ForceForce
e ee e ee e e e e e eeee e
VoltageVoltage
Potential DifferencePotential Difference
Electromotive Force (EMF)Electromotive Force (EMF)
VoltageVoltage
Symbol - Symbol - VV
Unit ndash Unit ndash VoltVolt
Volt - Volt - VV
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
High ResistanceHigh ResistanceInsulatorInsulator
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
Low ResistanceLow ResistanceConductorConductor
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
High and Low ResistanceHigh and Low ResistanceSemiConductorSemiConductor
ResistanceResistance
Symbol - Symbol - RR
Unit ndash Unit ndash OhmOhm
Ohm - Ohm - ΩΩ
Putting it all TogetherPutting it all Together
LoadSource
Path
Homework 1-1Homework 1-1
WorksheetWorksheetDue 9902Due 9902Test 9902Test 9902
ForceForce
e ee e ee e e e e e eeee e
VoltageVoltage
Potential DifferencePotential Difference
Electromotive Force (EMF)Electromotive Force (EMF)
VoltageVoltage
Symbol - Symbol - VV
Unit ndash Unit ndash VoltVolt
Volt - Volt - VV
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
High ResistanceHigh ResistanceInsulatorInsulator
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
Low ResistanceLow ResistanceConductorConductor
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
High and Low ResistanceHigh and Low ResistanceSemiConductorSemiConductor
ResistanceResistance
Symbol - Symbol - RR
Unit ndash Unit ndash OhmOhm
Ohm - Ohm - ΩΩ
Putting it all TogetherPutting it all Together
LoadSource
Path
Homework 1-1Homework 1-1
WorksheetWorksheetDue 9902Due 9902Test 9902Test 9902
VoltageVoltage
Symbol - Symbol - VV
Unit ndash Unit ndash VoltVolt
Volt - Volt - VV
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
High ResistanceHigh ResistanceInsulatorInsulator
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
Low ResistanceLow ResistanceConductorConductor
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
High and Low ResistanceHigh and Low ResistanceSemiConductorSemiConductor
ResistanceResistance
Symbol - Symbol - RR
Unit ndash Unit ndash OhmOhm
Ohm - Ohm - ΩΩ
Putting it all TogetherPutting it all Together
LoadSource
Path
Homework 1-1Homework 1-1
WorksheetWorksheetDue 9902Due 9902Test 9902Test 9902
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
High ResistanceHigh ResistanceInsulatorInsulator
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
Low ResistanceLow ResistanceConductorConductor
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
High and Low ResistanceHigh and Low ResistanceSemiConductorSemiConductor
ResistanceResistance
Symbol - Symbol - RR
Unit ndash Unit ndash OhmOhm
Ohm - Ohm - ΩΩ
Putting it all TogetherPutting it all Together
LoadSource
Path
Homework 1-1Homework 1-1
WorksheetWorksheetDue 9902Due 9902Test 9902Test 9902
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
Low ResistanceLow ResistanceConductorConductor
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
High and Low ResistanceHigh and Low ResistanceSemiConductorSemiConductor
ResistanceResistance
Symbol - Symbol - RR
Unit ndash Unit ndash OhmOhm
Ohm - Ohm - ΩΩ
Putting it all TogetherPutting it all Together
LoadSource
Path
Homework 1-1Homework 1-1
WorksheetWorksheetDue 9902Due 9902Test 9902Test 9902
ResistanceResistance
Opposition to Current FlowOpposition to Current Flow
High and Low ResistanceHigh and Low ResistanceSemiConductorSemiConductor
ResistanceResistance
Symbol - Symbol - RR
Unit ndash Unit ndash OhmOhm
Ohm - Ohm - ΩΩ
Putting it all TogetherPutting it all Together
LoadSource
Path
Homework 1-1Homework 1-1
WorksheetWorksheetDue 9902Due 9902Test 9902Test 9902
ResistanceResistance
Symbol - Symbol - RR
Unit ndash Unit ndash OhmOhm
Ohm - Ohm - ΩΩ
Putting it all TogetherPutting it all Together
LoadSource
Path
Homework 1-1Homework 1-1
WorksheetWorksheetDue 9902Due 9902Test 9902Test 9902
Putting it all TogetherPutting it all Together
LoadSource
Path
Homework 1-1Homework 1-1
WorksheetWorksheetDue 9902Due 9902Test 9902Test 9902
Homework 1-1Homework 1-1
WorksheetWorksheetDue 9902Due 9902Test 9902Test 9902