An electromechanical closed-loop control system has the following characteristic equation : s3 + 6 Ks2 + (K + 2) s + 8 = 0 where K is the forward gain of the system. The condition for closed loop stability is

An electromechanical closed-loop control system has the following char

1.	An electromechanical closed-loop control system has the following characteristic equation : s3 + 6 Ks2 + (K + 2) s + 8 = 0 where K is the forward gain of the system. The condition for closed loop stability is
A.	K = 0.528
B.	K = 2
C.	K = 0
D.	K = 2.58
Answer» B. K = 2

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An electromechanical closed-loop control system has the following characteristic equation : s3 + 6 Ks2 + (K + 2) s + 8 = 0 where K is the forward gain of the system. The condition for closed loop stability is

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