Q. A feedback circuit usually employsnetwork
✅ Correct Answer: (A)
Resistive
Amplifiers with Negative Feedback MCQs | Page - 1
Dear candidates you will find MCQ questions of Amplifiers with Negative Feedback here. Learn these questions and prepare yourself for coming examinations and interviews. You can check the right answer of any question by clicking on any option or by clicking view answer button.
Q. An emitter follower hasinput impedance
✅ Correct Answer: (C)
High
Q. Emitter follower is acircuit
✅ Correct Answer: (B)
Current feedback
Q. Emitter follower is used for _________.
✅ Correct Answer: (B)
Impedance matching
Q. If the feedback fraction of an amplifier is 0.01, then voltage gain with negative feedback is approximately_________.
✅ Correct Answer: (B)
100
Q. If the output of an amplifier is 10 V and 100 mV from the output is fed back to the input, then feedback fraction is _________.
✅ Correct Answer: (B)
0.1
Q. If voltage feedback (negative) is applied to an amplifier, its output impedance _________.
✅ Correct Answer: (C)
Is decreased
Q. Negative feedback is employed in _______
✅ Correct Answer: (C)
Amplifiers
Q. The gain of an amplifier with feedback is known as gain
✅ Correct Answer: (C)
Closed loop
Q. The gain of an amplifier without feedback is 100 db. If a negative feedback of 3 db is applied, the gain of the amplifier will become _________.
✅ Correct Answer: (D)
97 db
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