This set of Network Theory Multiple Choice Questions & Answers (MCQs) focuses on “Short Circuit Admittance(Y) Parameters”.

1. 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

2. Which of the following expression is true in case of short circuit parameters?
a) I1 = Y11 V1 + Y12 V2
b) I1 = Y11 I1 + Y12 V2
c) V1 = Y11 I1 + Y12 V2
d) V1 = Y11 V1 + Y12 V2

3. In determining short circuit impedance parameters, among V1, V2, I1, I2, which of the following are dependent variables?
a) V1 and V2
b) I1 and I2
c) V1 and I2
d) I1 and V2

4. Which of the following expression is true in case of short circuit parameters?
a) I2 = Y21I1 + Y22 I2
b) V2 = Y21I1 + Y22 V2
c) I2 = Y21V1 + Y22 V2
d) I2 = Y21V1 + Y22 I2

5. Find the Y – parameter Y11 in the circuit shown below.

a) 2
b) 3/2
c) 1
d) 1/2

6. Find the Y – parameter Y22 in the circuit shown below.

a) 3/8
b) 5/8
c) 7/8
d) 9/8

7. The parameters Y11, Y12, Y21, Y22 are called?
a) Open circuit impedance parameters
c) Inverse transmission parameters
d) Transmission parameters

8. Find the Y – parameter Y21 in the circuit shown below.

a) -1/4
b) 1/4
c) 1/2
d) -1/2

9. Find the Y – parameter Y12 in the circuit shown below.

a) 1/2
b) -1/2
c) -1/4
d) 1/4

10. 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)