Multiple choice

The transfer function of a compensator is given as Gc(s) = (s +1)/(s +2)

The phase of the above lead compensator is maximum at

  1. $\sqrt2$rad/s
  2. $\sqrt3$rad/s
  3. $\sqrt6$rad/s
  4. 1/ $\sqrt3$rad/s
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A Correct answer
Explanation

 In lead compensator |Z| < |P|            Here we compare the given equation            then we get Z= 1 and P = 2           So W = √(Z *P) = √2 rad/s