1.

Consider the open loop response. An unknown feedback is applied. Choose the correct output of the new system from the following.(a) Output response of Increased frequency distortion(b) Output response of Decreased frequency distortion(c) Output response of Decreased frequency distortion(d) Output response of No change in frequency distortion.I had been asked this question during a job interview.My question is from Effects of Feedback in chapter General and Feedback Amplifiers of Analog Circuits

Answer»

Correct option is (B) Output RESPONSE of Decreased frequency DISTORTION

To explain I would SAY: Output should have increased Bandwidth and decreased frequency distortion. If bandwidth increases, the distortion cannot increase since it’s a case of negative FEEDBACK. Also, the distortion cannot remain the same.



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