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With negative feedback in a closed loop control system, the system sensitivity to parameter variation:

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With negative feedback in a closed loop control system, the system sensitivity to parameter variation:

(a) Increases

(b) Decreases

(c) Becomes zero

(d) Becomes infinite

This question was addressed to me in homework.

I would like to ask this question from Time Domain Analysis topic in portion Stability in Frequency Domain of Control Systems

1 Answer

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Best answer
Correct answer is (b) Decreases

Best explanation: Sensitivity is defined as the change in the output with respect to the change in the input and due to negative feedback reduces by a factor of 1/ (1+GH).

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