engineering recuitment GATE IN Test Series 2023-24 Mock Test Control Systems Frequency Response Analysis Nyquist Plot
The Nyquist plot of G(jω) H(jω) for a closed-loop control system, passes through (-1, j0) point in the GH plane. The gain margin of the system in dB is equal to
1
infinite
2
greater than zero
3
less than zero
4
zero