Stability Theory – 44

44. The open-loop transfer function of a unity negative feedback control system is given by G(s) = (K(s+4))/(S( s+2)(s+6)) For K >4, the stability characteristics of the open-loop and closedloop configurations of the system are, respectively

(a) stable and stable
(b) unstable and stable
(c) stable and unstable
(d) unstable and unstable

Answer : (b)

Explanation : No answer description available for this question. Let us discuss.

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