Question

For the given information Z11 = 3, Z12 = 1, Z21 = 2, Z22 = 1. Find the value of Y22.

(a) 1

(b) 2

(c) 3

(d) 4

This question was addressed to me in an interview.

The origin of the question is Inner Relationships of Different Parameters in division Two-Port Networks of Network Theory

Answer 1

Right option is (c) 3

Best explanation: The relation between Y22 and Z11 is Y22= Z11/∆z and ∆z=3-2=1 and given Z11 = 3. On substituting we get Y22 = 3/1 = 3.