Calculate the gain margin of the system G(s) with unity feedback. Wher – McqOptions

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1.	Calculate the gain margin of the system G(s) with unity feedback. Where G(s) is given as \(G\left( s \right) = \frac{5}{{s\left( {s + 5} \right)\left( {s + 15} \right)}}\)
A.	\(20{\log _{10}}500dB\)
B.	\(20{\log _{10}}300dB\)
C.	\(20{\log _{10}}50dB\)
D.	\(20{\log _{10}}100dB\)
Answer» C. \(20{\log _{10}}50dB\)

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