Question

In the circuit shown below, find the h-parameter h12.

(a) 1/2

(b) -1/2

(c) 1

(d) -1

I had been asked this question during an internship interview.

My question is based upon Transmission(ABCD) Parameters topic in chapter Two-Port Networks of Network Theory

Answer 1

Correct answer is (a) 1/2

Explanation: Open circuiting a-a^‘ we get V1=Iy×2 and

Iy=I2/2 and V2=Ix×4 and Ix=I2/2. On solving and substituting, we get h12 = V1/V2=1/2.