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8/11/2019 Elex Quiz Bowl
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EASY ROUND
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1. It is an electronic circuit that fxeseither the positive or the negativepeak excursions o a signal to a!efne! value "# shiting its D$ value.
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$la%per
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&. In electronics' it is the %etho! oesta"lishing pre!eter%ine! voltages orcurrents at various points o anelectronic circuit or the purpose oesta"lishing proper operatingcon!itions in electronic co%ponents.
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(iasing
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). ******* e+ect causes a sharpincrease in reverse current ,hen thereverse-"ias voltage across a !io!e"eco%es excessive.
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Avalanche
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5.6&5 %ASol7n8
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5. It is a transistor a%plifer ,hoseinput is applie! to the "ase an! ,hoseoutput is taken ro% the collector. It
provi!es high voltage an! current gainan! ver# high po,er gain.
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$o%%on-E%itter
A%plifer
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6. It is the propert# o a con!uctor "#,hich a change in current :o,ingthrough it creates a voltage
;electro%otive orce< in "oth thecon!uctor itsel an! in an# near"#con!uctors.
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In!uctance
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=. $alculate the resonant re>uenc# oran 3-? in!uctance an! a &2-@0capacitance.
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1&.6 ?
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3. $alculate the BED current in series,ith a resister o &.&kC supplie! ,ith a& 4. Assu%e the BED has a voltage
!rop o &.2 4.
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12 %A
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. It is a circuit ,hose output voltage isproportional to the change in applie!voltage. he ti%e constant o this
circuit %ust "e short ,ith respect tothe pulse ,i!th o the applie! voltage.
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Di+erentiatior
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12. It is an instru%ent or %easuringthe electric po,er ;or the suppl# rateo electrical energ#< in ,atts o an#
given circuit.
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att%eter
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?ar! Roun!
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1. In the s#ste% "elo,' F1G sHsJ&
an! F&G )Hs. Evaluate transer
unction ,hen t G &H5.
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2.6&6
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&. It is the %oving part o a rotar#electrical s,itch in certain t#pes oelectric %otors or electrical generators
that perio!icall# reverses the current!irection "et,een the rotor an! theexternal circuit.
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$o%%utator
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). It is a thin slice o se%icon!uctor%aterial' such as a silicon cr#stal' use!in the a"rication o integrate! circuits
an! other %icro!evices.
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aer
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. It is the ten!enc# o a s#ste% tooscillate ,ith greater a%plitu!e atso%e re>uencies than at others.
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Resonance
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5. It is an electrical !evice thattransers energ# "et,een t,o or %orecircuits through electro%agnetic
in!uction.
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ransor%er
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6. It is the opposition o a circuitele%ent to a change o electric currentor voltage' !ue to that ele%entKs
in!uctance or capacitance.
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Reactance
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=. In the circuit "elo,' resistor R)is
su!!enl# re%ove!' leaving a gap ;anopen circuit
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.6& ns
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3. 0in! the value o 4D.
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4
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. $alculate the output voltage i 41G
-4&G 1 4.
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-& 4
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12. Suppose that ,e have t,oresistors connecte! in parallel ,ithresistances R1an! R&%easure! in
oh%s ;C
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-2.1&&= CHhr
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