Question

Which of the following equation is true in the circuit shown below?

(a) I1=0.5(V1)+0.25(V2)

(b) I1=0.25(V1)+0.625(V2)

(c) I1=-0.25(V1)+0.625(V2)

(d) I1=0.5(V1)-0.25(V2)

I got this question in quiz.

Question is from Short Circuit Admittance(Y) Parameters topic in section Two-Port Networks of Network Theory

Answer 1

Right option is (d) I1=0.5(V1)-0.25(V2)

The best I can explain: We got the admittance parameters as Y11 = 0.5, Y12 = -0.25, Y21 = -0.25, Y22 = 0.625. So the equations in terms of admittance parameters is I1=0.5(V1)-0.25(V2) and I2=-0.25(V1)+0.625(V2).