Question: The Nyquist plot of a loop transfer function (mathrm{G}(j omega) mathrm{H}(j omega)) of a system encloses the ((-1, j 0)) point. The gain margin of

The Nyquist plot of a loop transfer function \(\mathrm{G}(j \omega) \mathrm{H}(j \omega)\) of a system encloses the \((-1, j 0)\) point. The gain margin of the system is
(a) less than zero
(b) zero
(c) greater than zero
(d) infinity

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