If the performance index of a phase lead compensator is (s+a)/ (s+b) and that of a lag compensator is (s+p)/(s+q), then which one of the following sets of conditions must be satisfied?
A. a>b and p<q
B. a>b and p<q
C. a<b and p<q
D. a<b and p>q
Answer:D
If the performance index of a phase lead compensator is (s+a)/ (s+b) and that of a lag compensator is (s+p)/(s+q), then which one of the following sets of conditions must be satisfied?
A. a>b and p<q B. a>b and p<q C. a<b and p<q D. a<b and p>q
Explanation: In phase lead compensator, zero is nearer to origin. In phase lag compensator, pole is nearer to origin.