A differentiator is usually not a part of a control system because it(a) Reduces damping(b) Reduces the gain margin(c) Increases input noise(d) Increases errorThis question was addressed to me in my homework.Origin of the question is Mathematical Preliminaries in division Stability in Frequency Domain of Control Systems

A differentiator is usually not a part of a control system because it(

1.	A differentiator is usually not a part of a control system because it(a) Reduces damping(b) Reduces the gain margin(c) Increases input noise(d) Increases errorThis question was addressed to me in my homework.Origin of the question is Mathematical Preliminaries in division Stability in Frequency Domain of Control Systems
Answer» Correct option is (c) INCREASES input noise For explanation: A differentiator is generally not the part of the control system as it increases the input noise DUE to reduced gain and INCREASED BANDWIDTH.

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