# Amplifiers with Negative Feedback Mcqs

This set of Electrical engineering Multiple Choice Questions & Answers (MCQs) focuses on study of “ Amplifiers with Negative Feedback ”. These questions are chosen from a collection of most authoritative and best reference books on Electrical engineering. Our aim is to prepare an individual for competitive exams like NTS, GAT, ECAT, University and College entrance exams, Jobs and interviews. One should practice our MCQS to assimilate Amplifiers with Negative Feedback comprehensively.

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7. Amplifiers with Negative Feedback Mcqs

High

Very high

Almost zero

Low

## 2. When negative voltage feedback is applied to an amplifier, its voltage gain ____________?

Is increased

Is reduced

Remains the same

None of the above

## 3. The value of negative feedback fraction is always _______________?

Less than 1

More than 1

Equal to 1

None of the above

10

1

01

15

## 5. The gain of an amplifier with feedback is known as____________gain?

Resonant

Open loop

Closed loop

None of the above

500

100

1000

5000

## 7. When current feedback (negative) is applied to an amplifier, its input impedance _____________?

Is decreased

Is increased

Remains the same

None of the above

## 8. A feedback circuit usually employs _________________ network?

Resistive

Capacitive

Inductive

None of the above

## 9. Negative feedback is employed in __________________?

Oscillators

Rectifiers

Amplifiers

None of the above

## 10. When current feedback (negative) is applied to an amplifier, its output impedance ________________?

Is increased

Is decreased

Remains the same

None of the above

5 db

300 db

103 db

97 db

## 12. Emitter follower is used for ________________?

Current gain

Impedance matching

Voltage gain

None of the above

## 13. The voltage gain of an emitter follower is _____________?

Much less than 1

Approximately equal to 1

Greater than 1

None of the above

## 14. If voltage feedback (negative) is applied to an amplifier, its output impedance ______________?

Remains the same

Is increased

Is decreased

None of the above

## 15. An emitter follower has ______________input impedance?

Zero

Low

High

None of the above

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