Consider the following open loop frequency response of a unity feedback system. The gain and phase margin

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Consider the following open loop frequency response of a unity feedback system.

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The gain and phase margin of the system are respectively
(a) $0.00 \mathrm{~dB},-180^{\circ}$
(b) $3.86 \mathrm{~dB},-180^{\circ}$
(c) $0.00 \mathrm{~dB},-10^{\circ}$
(d) $3.86 \mathrm{~dB}, 10^{\circ}$

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Control System Analysis And Design

ISBN: 9788122438857

2nd Edition

Authors: A.K. Tripathi

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Question Posted: Feb 01, 2024 03:01 AM

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Consider the following open loop frequency response of a unity feedback system. The gain and phase margin

Question:

w, rad/s |G(jo)| |G(j)| 2 7.5 - 118 3 4.8 4 3.15 - 130 - 140 - 5 2.25 6 1.70 8 1.00 - 150 - 157 - 170 10 0.64 - 180

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