A system with gain margin close to unity and phase margin close to zero is :
A. Highly stable
B. Oscillatory
C. Relatively stable
D. Unstable
Answer:C
A system with gain margin close to unity and phase margin close to zero is :
A. Highly stable B. Oscillatory C. Relatively stable D. Unstable
Explanation: A system is relative stable not stable if the phase margin is close to zero then the stability is checked by gain margin.