Question

A phase lead network has the transfer function $G\left(s\right)=\frac{1+0.2s}{1+0.05s}.$
The angular frequency at which the maximum phase shift for the network occurs is_____.

• A. 20 rad/s
• B. 200 rad/s
• C. 100 rad/s
• D. 10 rad/s

Answer 1

The correct option is D 10 rad/s

$G\left(s\right)=\frac{1+0.2s}{1+0.05s}$
$Z=\frac{1}{0.2}=5$
$P=\frac{1}{0.05}=20$
${\omega }_n=\sqrt{Z.P}=10rad/s$