Discussion
Assertion (A): Assertion: Negative feedback improves an amplifier's gain accuracy.
Reason (R): Reason: The closed-loop gain tends to the reciprocal of the feedback fraction.
Select the correct answer from the options below.
Answer: D
Both are true and the second is the reason: with a large loop gain the amplifier's own gain drops out and the result is set by the passive network alone. The accuracy is then as good as those components, which can be made far better than any device parameter. Transferring an accuracy requirement from an unreliable element to a reliable one is what feedback achieves, and every other benefit follows from the same division.
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