Copyright © 2009 Pearson Education, Inc. Welcome to Phys245a Relativistic Quantum Field Theory and the Supersymmetric Paradigm in Particle Physics Dr

Copyright © 2009 Pearson Education, Inc.

Welcome to Phys245a Relativistic Quantum Field Theory and the

Supersymmetric Paradigm in Particle Physics

Dr. Jamie [email protected]

http://www.physics.udel.edu/~jholder


Only Joking Welcome to Phys245 Introduction to Electricity and Electronics

Dr. Jamie [email protected]

http://www.physics.udel.edu/~jholder


Lecture 1 Overview

• Introductions

• Syllabus

• Course description

• http://www.physics.udel.edu/~jholder/Phys245/PHYS245.html


Who am I?

• Course Instructor: Dr. Jamie Holder• 1990 University of Leeds, UK: Physics with

Astrophysics• 1993 University of Durham, UK: Gamma-Ray Astronomy• 1997 University of Tokyo, Japan: CANGAROO project• 1999 University of Paris, France: CELESTE project• 2001 University of Leeds, UK: VERITAS project• 2006 University of Delaware, USA: VERITAS project


VERITAS

• Situated at 1250m altitude at the Whipple Observatory near Tucson

• Operating since March 2007

• http://vimeo.com/47127288

•https://www.youtube.com/watch?v=IdNR8QhDT5Y


VERITAS

• Uses four, 12 meter diameter reflectors to detect gamma-rays (very high energy photons) from astrophysical sources (Supernova remnants, active galaxies, black holes, neutron stars)

Stereoscopy: Stereoscopy: Telescope ArraysTelescope Arrays


Gamma-ray Astronomy


So why is an astronomer teaching electronics?


Who are you?

• >90% Mechanical engineers• Mostly Juniors & Sophomores• Plus a few others…

• Pre-req: PHYS 207 Fundamentals of Physics I• Co-req: MATH 243 Analytic Geometry and

Calculus C

• Math I will use: High school algebra. Some basic calculus. Complex numbers.


Course descriptionCourse Description:

Fundamentals of electricity and magnetism specific to dc and ac circuit analysis, transient circuit behavior, electrostatics and rotating machinery.

Course Objectives:As a result of this course, I hope that you can better:•Understand the physics behind electrical systems.•Apply these concepts when designing and using electrical circuits.•Analyze and draw conclusions from experimentally obtained data. •Apply spreadsheet or modeling software to organize data, perform calculations, and display results graphically. •Communicate technical ideas effectively.


Syllabus• DC circuits

• Physical properties: Voltage, charge, current, power• Components: sources, resistors, meters• Analysis: Ohm’s law, combination rules, Kirchoff’s laws,

Thevenin and Norton equivalents • Capacitor and inductor circuits

• Physical properties: Electrostatics• Component properties: capacitance, inductance, energy stored• Analysis: Combination laws

• AC circuits• Fundamentals: sinusoids and complex numbers• Properties: AC voltage, current and resistance (impedance)• Analysis: Generalized Ohm’s law, AC circuit analysis• Transient circuits• Combining R, C and L: filters and resonant circuits


Syllabus• Electromagnetism

• Physical properties: Fields and forces, Magnetic induction• Applications: motors and generators, tranducers

• Operational Amplifiers (If time allows)• Description and explanation• Applications: Amplifiers, Operations, Filters, Analog/Digital

conversion


Course structure

• Lectures: Dr Jamie Holder ([email protected])• Mon-Wed-Fri 10:10AM - 11:00AM, Sharp Lab Room 130• You are expected to attend lectures

• Office hours:• Monday 2pm – 3pm, Thursday 2pm – 3pm• Also ask questions by email, or after class

• Discussion Sections:• Start next week (Feb 19th): • 020D: Thurs 3:30pm – 4:20pm Gore 114 Zach• 021D: Fri 11:15am – 12:05pm Sharp 105 Seth• 022D: Fri 12:20pm – 1:10pm Sharp 105 Seth• 023D: Fri 1:25pm – 2:15pm Sharp 105 Seth• 024D: Fri 2:30pm – 3:20pm Mitchell 014 Zach• 025D: Fri 3:35pm – 4:25pm Sharp 105 Seth


Course structure

• Labs start next week (Feb 16th)• 020L: Mon 11:15am – 1:15pm Sharp 101A: Shuhan• 021L: Mon 1:15pm – 3:15pm Sharp 101A: Shuhan• 022L: Mon 3:15pm – 5:15pm Sharp 101A: Shuhan• 023L: Mon 5:15pm – 7:15pm Sharp 101A: Shuhan• 024L: Tues 11:15am – 1:15pm Sharp 101A: Zach• 025L: Tues 1:15pm – 3:15pm Sharp 101A: Zach

• There are 11 labs in total. • Lab scripts are on the course web page• All labs have a pre-lab, worth 2 points which must be handed to the TA at the start of the lab• Lab performance is worth 1 point• The lab report is worth 7 points, and includes:

• 1) Introduction. 2) Experiment and Results. 3) Analysis. 4) Summary.• It must be typed. Joint reports (with your lab partners) are OK.• Reports are due 1 week after your lab.

• Labs are worth 20% of your grade• You can miss one lab, or we will drop the lab with the lowest score.• This is to cover unavoidable, but unexcused, absences – not parties!


Good Lab Practice

• PLEASE KEEP THE LAB TIDY. • Return components to their boxes.• Make circuits neat• Check circuit before turning power on• Remove power before changing circuit elements• Do not touch circuit with bare hands when the power

is on• Make sure the grounding is good• Do not short voltage sources or open current

sources• Tidy your lab station before leaving


Good Lab Practice

BAD! GOOD!


BAD! GOOD!


There is no single textbook which covers the whole course.

I will post all of my lectures on the course web page

Physics for Scientists and Engineers, 4th edition

Giancoli

Volume 2 (chapters 21-35)

ISBN: 9780136139249

With MasteringPhysics access

If you buy the book without access (e.g. used, or an old edition), you can pay for access online – but it costs more ($65)


Assignments• Most assignments will use the

“MasteringPhysics” website • http://www.masteringphysics.com• You must register (use same name as in UD’s system)

• Course ID• MPHOLDER67874

• Either use access code with textbook (cheap), or pay online (~$65)

• First assignment posted: due Monday (not graded). • Don’t use Safari!

• This is essential – and 20% of your grade!• Assignments will be weekly• Late assignments lose 25%


Grading

• Labs: 20%• Assignments: 20%• First mid-term: 15%• Second mid-term: 15%• Final (Cumulative): 30%


How do I succeed in this class?• Keep up with the labs and assignments

• These make up 40% of your grade – skipping or delaying them is throwing easy points away

• Attend class and discussions, and take notes on problems.

• Practice, practice, practice!!! • I will provide extra (ungraded) practice problems for

the discussion sections, but you can also make your own, and find many more on the web.

• Ask questions, and come to office hours. • Most importantly – tell me early if you have any

issues.


The important bits:

• No labs or discussion sections this week.

• Register for MasteringPhysics• www.masteringphysics.com• Course ID: MPHOLDER67874

• All lectures, and lab scripts, posted here:• http://www.physics.udel.edu/~jholder/Phys245/PHYS245.html


Direct Current Circuits


Electric current is the rate of flow of charge through a conductor:

Unit of electric current: the ampere, A:

1 A = 1 C/s.

Electric Current

The instantaneous current is given by:

Smallest unit of charge is the charge on the electron = -1.6×10-19 Coulomb

Documents

Copyright © 2009 Pearson Education, Inc. Welcome to Phys245a Relativistic Quantum Field Theory and the Supersymmetric Paradigm in Particle Physics Dr