Question

The poles and zeros of driving point impedance function and driving point admittance function lie on?

(a) left half of s-plane only

(b) right half of s-plane only

(c) left half of s-plane or on imaginary axis

(d) right half of s-plane or on imaginary axis

The question was asked at a job interview.

This interesting question is from Hurwitz Polynomials in chapter Elements of Realizability and Synthesis of One-Port Networks of Network Theory

Answer 1

Correct choice is (c) left half of s-plane or on imaginary axis

The explanation is: The poles and zeros of driving point impedance function and driving point admittance function lie on left half of s-plane or on imaginary axis of the s-plane.