In determining short circuit impedance parameters, among V1, V2, I1, I2, which of the following are independent variables?
(a) I1 and V2
(b) V1 and I2
(c) I1 and I2
(d) V1 and V2
I got this question in an international level competition.
I need to ask this question from Short Circuit Admittance(Y) Parameters topic in chapter Two-Port Networks of Network Theory