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ITI
Electrician
Electrician Set-1
Semi Conductor Devices
23

Semi Conductor Devices MCQ - Electrician (Set-1) with Answers

23) For stabilising the gain of an amplifier ?

positive feedback is used

no feedback is used

input voltage is varied

negative feedback is used

Answer is:

negative feedback is used

Semi Conductor Devices MCQ - Electrician (Set-1) with Answers

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Related Semi Conductor Devices MCQ - Electrician (Set-1) with Answers

24) The automatic volume control (A.V.C.) system of a radio receiver incorporates ?

positive feedback

negative feedback

inverting feedback

no feedback

Answer is:

negative feedback

25) The technique of feeding the output of one amplifier stage to the input of the second amplifier stage is called ?

joining

coupling

isolating

bypassing

Answer is:

coupling

26) A power amplifier is essentially ?

an impedance matching device

a noise amplifier

a current amplifier

a voltage amplifier

Answer is:

a current amplifier

27) If the two half signals applied to a push-pull amplifier stage are not symmetrical, the result will be ?

increased gain

distorted output

reduced gain with high efficiency

increased efficiency

Answer is:

distorted output

Semi Conductor Devices MCQ - Electrician (Set-1) with Answers

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