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ITI
Electrician
Electrician Set-1
Semi Conductor Devices
18

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

18) The first stage of an audio amplifier is designed to work as class 'A' due to its ?

high efficiency

high power gain

low distortion

all the above stated reasons

Answer is:

low distortion

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

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

19) Class 'A' amplifier conducts during ?

positive half cycle of the input only

negative half cycle of the input only

entire cycle of the input

less than positive half cycle of the input

Answer is:

entire cycle of the input

20) If a portion of output voltage is fed back to the input of an amplifier at a phase difference of 180 degree, the phenomenon is called ?

negative feedback

positive feedback

voltage feedback

current feedback

Answer is:

negative feedback

21) Which one of the following is not an advantage of negative feedback ?

Reduced noise

Reduced distortion

Increased gain

Increased sound quality

Answer is:

Increased gain

22) If the emitter resistor is not bypassed by a capacitor, the feedback circuit is called ?

current feedback

voltage feedback

inverting voltage feedback

foldback

Answer is:

current feedback

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

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