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GATE 2023 Control system Quiz 65

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Question 1

For a stable system, what are the restrictions on the gain margin and phase margin?

Question 2

A unity feedback system has open-loop transfer function G(s). Polar plot of G(jω) is shown below. The gain margin (GM) and the phase margin (PM) of the feedback system are

Question 3

The gain margin of the system is 40 dB

If the gain of the system is doubled , then gain margin becomes_____dB

Question 4

The gain margin and the phase margin of a feedback system with

are

Question 5

For a stable system which one is correct ? (PM: Phase Margin, GM: Gain Margin)

Question 6

Determine the gain margin and phase margin for k=3
G(s)H(s) =

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ESE & GATE EC Control Systems

Nov 11ESE & GATE EC