K Gc(S) = (s + 3)2 (s + 5) Gp(S) = (s + 1)(8 + 4) and H(S) = 1. R(S) r(t) + E(S) e(t) Gc(s) * Ge(s) C(s) c(t) H(S) ( Fig

[answerhappygod]

K Gc S S 3 2 S 5 Gp S S 1 8 4 And H S 1 R S R T E S E T Gc S Ge S C S C T H S Fig 1 (17.14 KiB) Viewed 12 times

K Gc S S 3 2 S 5 Gp S S 1 8 4 And H S 1 R S R T E S E T Gc S Ge S C S C T H S Fig 2 (13.84 KiB) Viewed 12 times

K Gc(S) = (s + 3)2 (s + 5) Gp(S) = (s + 1)(8 + 4) and H(S) = 1. R(S) r(t) + E(S) e(t) Gc(s) * Ge(s) C(s) c(t) H(S) ( Figure Q1a
[6 mark (d) With the aid of the Routh-Hurwitz stability criterion, investigate the range of the gain that would guarantee the stability of the system and hence, find the frequency of oscillation at the marginal stability point. 18 marl