If the polar plot, as the frequency is varied from 0 to infinity is-A-a semicircleB-a circleC-a straight lineD-none of the above-A-a semicircle

Question

If  the polar plot, as the frequency is varied from 0 to infinity is-A-a semicircleB-a circleC-a straight lineD-none of the above-A-a semicircle

APTITUDE CRACK · Accepted Answer

A a semicircle At &omega; = 0, G(j&omega;) = 1 &ang; 0. At &omega; = &infin;, G(j&omega;) = 0 &ang; 90&deg;.

Automatic Control Systems - Engineering