Question

The lowest degree in numerator polynomial and denominator polynomial in a driving point function may differ by at most __________

(a) 0

(b) 1

(c) 2

(d) 3

I had been asked this question in class test.

The query is from Properties of Transfer Functions in portion S-Domain Analysis of Network Theory

Answer 1

Right answer is (b) 1

The best explanation: The lowest degree in numerator polynomial and denominator polynomial in a driving point function may differ by at most one and the coefficients in the polynomials P(s) and Q(s) of network function must be real and positive.