Question

Zeroes are defined as:

(a) Roots of the denominator of the closed loop transfer function

(b) Roots of the numerator of the closed loop transfer function

(c) Both of the mentioned

(d) None of the mentioned

This question was addressed to me during an interview.

I would like to ask this question from Construction of Phase-Trajectories in chapter Nonlinear Systems of Control Systems

Answer 1

Correct option is (b) Roots of the numerator of the closed loop transfer function

Explanation: Zeroes are defined as the roots of the numerator of the closed loop system.