0 votes 0 votes The open-loop $\text{DC}$ gain of a unity negative feedback system with closed-loop transfer function $\frac{s+4}{s^{2}+7 s+13}$ is $\frac{4}{13}$ $\frac{4}{9}$ $4$ $13$ Others gate2001-ec + – admin asked Sep 29, 2022 • edited Nov 30, 2023 by makhdoom ghaya admin 46.4k points 72 views answer comment Share Follow See all 0 reply Please log in or register to add a comment.