Networks Analysis and Synthesis - Engineering

Q1:

A minimum function has

A poles and zeros on imaginary axis of s plane

B no poles or zeros on imaginary axis of s plane

C only poles but no zeros on imaginary axis of s plane

D only zeros but no poles on imaginary axis of s plane

ANS:C - only poles but no zeros on imaginary axis of s plane

Poles and zeros on imaginary axis lead to reactance function. A minimum function cannot have poles and zeros on imaginary axis.