1.

The coefficients of numerator polynomial and the denominator polynomial in a transfer function must be?(a) real(b) complex(c) at least one real coefficient(d) at least one complex coefficientThis question was posed to me in a job interview.Question is from Properties of Transfer Functions in section S-Domain Analysis of Network Theory

Answer»

The correct OPTION is (a) real

The explanation is: The coefficients of P(s), the NUMERATOR polynomial and of Q(s), the denominator polynomial in a transfer function must be real. THEREFORE all POLES and zeros if complex must occur in CONJUGATE pairs.



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