Amplifiers With Negative Feedback MCQs with Explanations

Voltage feedback is the correct answer to “Emitter follower is a ___________ circuit”. This question is standard in competitive examination syllabi for Amplifiers With Negative Feedback.

Resistive is the correct answer to “A feedback circuit usually employs ___________ network”. This question is standard in competitive examination syllabi for Amplifiers With Negative Feedback.

Closed loop is the correct answer to “The gain of an amplifier with feedback is known as ___________ gain”. This question is standard in competitive examination syllabi for Amplifiers With Negative Feedback.

High is the correct answer to “An emitter follower has ___________ input impedance”. This question is standard in competitive examination syllabi for Amplifiers With Negative Feedback.

Is reduced is the correct answer to “When negative voltage feedback is applied to an amplifier, its voltage gain ___________”. This question is standard in competitive examination syllabi for Amplifiers With Negative Feedback.

Is increased is the correct answer to “When a negative voltage feedback is applied to an amplifier, its bandwidth___________”. This question is standard in competitive examination syllabi for Amplifiers With Negative Feedback.

1 is the correct answer to “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 ___________”. This question is standard in competitive examination syllabi for Amplifiers With Negative Feedback.

97 db is the correct answer to “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 ___________”. This question is standard in competitive examination syllabi for Amplifiers With Negative Feedback.

Approximately equal to 1 is the correct answer to “The voltage gain of an emitter follower is ___________”. This question is standard in competitive examination syllabi for Amplifiers With Negative Feedback.

Low is the correct answer to “The output impedance of an emitter follower is ___________”. This question is standard in competitive examination syllabi for Amplifiers With Negative Feedback.

Amplifiers is the correct answer to “Negative feedback is employed in ___________”. This question is standard in competitive examination syllabi for Amplifiers With Negative Feedback.

Is increased is the correct answer to “When voltage feedback (negative) is applied to an amplifier, its input impedance ___________”. This question is standard in competitive examination syllabi for Amplifiers With Negative Feedback.

Is decreased is the correct answer to “When current feedback (negative) is applied to an amplifier, its input impedance ___________”. This question is standard in competitive examination syllabi for Amplifiers With Negative Feedback.

Is decreased is the correct answer to “If voltage feedback (negative) is applied to an amplifier, its output impedance ___________”. This question is standard in competitive examination syllabi for Amplifiers With Negative Feedback.

100 is the correct answer to “If the feedback fraction of an amplifier is 0.01, then voltage gain with negative feedback is approximately___________”. This question is standard in competitive examination syllabi for Amplifiers With Negative Feedback.

Less than 1 is the correct answer to “The value of negative feedback fraction is always ___________”. This question is standard in competitive examination syllabi for Amplifiers With Negative Feedback.

Is increased is the correct answer to “When current feedback (negative) is applied to an amplifier, its output impedance”. This question is standard in competitive examination syllabi for Amplifiers With Negative Feedback.

Impedance matching is the correct answer to “Emitter follower is used for ___________”. This question is standard in competitive examination syllabi for Amplifiers With Negative Feedback.