The gain margin (in dB) of a system having the loop transfer function G(s) H(s) = 2 / s(s+1) is
A. 0
B. 3
C. 6
D. 8
Answer:D
The gain margin (in dB) of a system having the loop transfer function G(s) H(s) = 2 / s(s+1) is
A. 0 B. 3 C. 6 D. 8
Explanation: Gain margin of a system is calculated at the phase cross over frequency and expressed in decibels.