Question

In two-port networks the parameter g11 is called _________

(a) Short circuit input impedance

(b) Short circuit current ratio

(c) Open circuit  voltage ratio

(d) Open circuit input admittance

I have been asked this question in exam.

My question is taken from Inverse Hybrid (g) Parameter in portion Two-Port Networks of Network Theory

Answer 1

The correct answer is (d) Open circuit input admittance

Explanation: We know that, g11 = \(\frac{I_1}{V_1}\), when I2 = 0.

Since the second voltage terminal is short circuited when the ratio of the current and voltage is measured, therefore the parameter g11 is called as Open circuit input admittance.