Which of the following is the correct comment on stability based on un – McqOptions

MCQOPTIONS

1.	Which of the following is the correct comment on stability based on unknown k for the feedback system with characteristic s4 + 2ks3 + s2 + 5s + 5 = 0?
A.	Unstable for all the values of k
B.	Stable for zero value of k
C.	Stable for positive value of k
D.	Stable for all the values of k
Answer» B. Stable for zero value of k

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