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Negative feedback in amplifier _____________

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Negative feedback in amplifier _____________

(a) Improves the signal-to-noise ratio at input

(b) Improves the signal-to-noise ratio at output

(c) Does not improve the signal-to-noise ratio at I/O

(d) Reduce Distortion

This question was posed to me during an interview.

Question is from Properties of Negative Feedback in chapter Differential and Multistage Amplifiers of Electronic Devices & Circuits

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Correct option is (d) Reduce Distortion

To elaborate: Since the negative feedback to any amplifier reduces its overall gain; hence any noise and distortion in the amplifier is also reduced.

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