Gate EE-2014-3 Question Paper With Solutions

Q. 28 A single-input single output feedback system has forward transfer function G(s )
and feedback transfer function H(|s ). It is given that Which of
the following is true about the stability of the system ?

(A) The system is always stable

(B) The system is stable if all zeros of G(s )H(s ) are in left half of the s -plane

(C) The system is stable if all poles of G(s )H(s ) are in left half of the s -plane

(D) It is not possible to say whether or not the system is stable from the
information given

Answer:(A)

Explanation:

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