Question

A transfer function has two zeros at infinity. Then the relation between the numerator degree (N) and the denominator degree (M) of the transfer function is

• A. $N=M+2$
• B. $N=M-2$
• C. $N=M+1$
• D. $N=M-1$

Answer 1

The correct option is B $N=M-2$

$\because$ Number of asympotic root locus branch $=M-N$
Here, $M-N=2$
$N=M-2$