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?
A. 0 dB
B. 2.0201 dB
C. 4 dB
D. 6.0205 dB
Answer:D
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?
A. 0 dB B. 2.0201 dB C. 4 dB D. 6.0205 dB