The open-loop transfer function of a unity feedback system is K/(s^2 (s+5))The system is unstable for
A. K>5
B. K<5
C. K>0
D. All of the mentioned
Answer:D
The open-loop transfer function of a unity feedback system is K/(s^2 (s+5))The system is unstable for
A. K>5 B. K<5 C. K>0 D. All of the mentioned
Explanation: The open loop transfer function of a unity feedback system is used to calculate the conditional stability by using the Routh Hurwitz criteria or the Root locus technique.