Q81
Which one of the following statements is correct in respect of the theory of stability?
A.
Phase margin is the phase angle lagging, in short of 180°, at the frequency corresponding to a gain of 10
B.
Gain margin is the value by which the gain falls short of unity, at a frequency corresponding to 90° phase lag
C.
Routh's-Hurwitz criterion can determine the degree of stability.
D.
Gain margin and phase margin are the measure of the degree of stability
AnswerAnswer: Option D
Solution
Answer: Option D
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