Numerical - Gain margin in dB for given closed loop system point

Q.  If a Nyquist plot of G (jω) H (jω) for a closed loop system passes through (-2, j0) point in GH plane, what would be the value of gain margin of the system in dB?
- Published on 09 Oct 15

a. 0 dB
b. 2.0201 dB
c. 4 dB
d. 6.0205 dB

ANSWER: 6.0205 dB

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  • sanal   -Posted on 28 Sep 17
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