Question: The open loop transfer function of a unity feedback control system is (frac{10}{(s+5)^{3}}). The gain margin of the system will be (a) (20 mathrm{~dB}) (b)

The open loop transfer function of a unity feedback control system is \(\frac{10}{(s+5)^{3}}\). The gain margin of the system will be
(a) \(20 \mathrm{~dB}\)
(b) \(40 \mathrm{~dB}\)
(c) \(60 \mathrm{~dB}\)
(d) \(80 \mathrm{~dB}\)

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