Discussion :: Automatic Control Systems
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Assertion (A): A large negative feedback is deliberately introduced in an amplifier to make its gain independent of variation in parameters of active device.
Reason (R): A large negative value of feedback results in a high value of return difference compared to unity which makes the feedback gain inversely proportional to the feedback factor.
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A.
Both A and R are correct and R is correct explanation of A
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B.
Both A and R are correct but R is not correct explanation of A
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C.
A is correct but R is wrong
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D.
R is correct but A is wrong
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Answer : Option A
Explanation :
Gain with feedback = 
.
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