1 votes 1 votes The open-loop transfer function of a unity-gain feedback control system is given by $$ \text{G}(s)=\frac{\text{K}}{(s+1)(s+2)} $$ The gain margin of the system in $\text{dB}$ is given by $0$ $1$ $20$ $\infty $ Others gate2006-ec + – admin asked Sep 20, 2022 • edited Feb 25, 2023 by Lakshman Bhaiya admin 46.4k points 131 views answer comment Share Follow See all 0 reply Please log in or register to add a comment.