Question

Determine the transfer function Z21 (S) in the circuit shown below.

(a) s

(b) 2 s

(c) 3 s

(d) 4 s

I had been asked this question in an online interview.

My enquiry is from Network Function for the One-Port and Two-Port topic in section S-Domain Analysis of Network Theory

Answer 1

Correct option is (b) 2 s

Easiest explanation: The transfer function Z21 (S) is Z21 (S) = V2(S)/I1(S). V2 (S) = I1 (S) X 2s. V2(S)/I1(S)=2s. On substituting Z21 (S) = 2s.