Q. The critical value of gain for a system is 40 and gain margin is 6dB. The system is operating at a gain of:

(A) 20
(B) 40
(C) 80
(D) 120

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✅ Correct Answer: (A) 20

Explanation: gm (db) = 20loggm gm =2

Published by Mr. Dubey ⭐ 110.47K Points at 15-Sep-2023 12:42 am in Control System Engineering

Explanation by: Mr. Dubey

gm (db) = 20loggm gm =2

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