# Advanced Problems on Two Port Network – 1 MCQ’s

This set of Network Theory Multiple Choice Questions & Answers (MCQs) focuses on “Advanced Problems on Two Port Network – 1″.

1. For the network of figure, z11 is equal to ___________

a) \frac{5}{3} Ω
b) \frac{3}{2} Ω
c) 2 Ω
d) \frac{2}{3} Ω

2. For the circuit given below, the value of z11 parameter is ____________

a) z11 = 4 + j6 Ω
b) z11 = j6 Ω
c) z11 = -j6 Ω
d) z11 = -j6 + 4 Ω

3. For the circuit given below, the value of the z12 parameter is ___________

a) z12 = 1 Ω
b) z12 = 4 Ω
c) z12 = 1.667 Ω
d) z12 = 2.33 Ω

4. In a series RLC circuit excited by a voltage 3e-t u (t), the resistance is equal to 1 Ω and capacitance = 2 F. For the circuit, the values of I (0+) and I (∞), are ____________
a) 0 and 1.5 A
b) 1.5 A and 3 A
c) 3 A and 0
d) 3 A and 1.5 A

5. For the circuit given below, the value of the z22 parameter is ___________

a) z22 = 1 Ω
b) z22 = 4 Ω
c) z22 = 1.667 Ω
d) z22 = 2.33 Ω

6. For the circuit given below, the value of z22 parameter is ____________

a) z22 = 4 + j6 Ω
b) z22 = j6 Ω
c) z22 = -j4 Ω
d) z22 = -j6 + 4 Ω

7. For the circuit given below, the value of z12 parameter is ____________

a) Z12 = 20 Ω
b) Z12 = 25 Ω
c) Z12 = 30 Ω
d) z12 = 24 Ω

8. For the circuit given below, the value of z22 parameter is ____________

a) z22 = 0.0667 Ω
b) z22 = 2.773 Ω
c) z22 = 1.667 Ω
d) z22 = 0.999 Ω

9. For the circuit given below, the value of z22 parameter is ____________

a) z22 = 1.775 + j5.739 Ω
b) z22 = 1.775 – j4.26 Ω
c) z22 = -1.775 – j5.739 Ω
d) z22 = 1.775 + j4.26 Ω

10. A capacitor of 220 V, 50 Hz is needed for AC supply. The peak voltage rating of the capacitor is ____________
a) 220 V
b) 460 V
c) 440 V
d) 230 V

11. If a two port network is passive, then we have, with the usual notation, the relationship as _________
a) h21 = h12
b) h12 = -h21
c) h11 = h22
d) h11 h22 – h12 h22 = 1

12. For the circuit given below, the value of z22 parameter is ____________

a) z22 = 20 Ω
b) z22 = 25 Ω
c) z22 = 30 Ω
d) z22 = 24 Ω

13. In the circuit given below, the value of the hybrid parameter h21 is _________

a) 10 Ω
b) 0.5 Ω
c) 5 Ω
d) 2.5 Ω

14. In two-port networks the parameter h22 is called _________
a) Short circuit input impedance
b) Short circuit current gain
c) Open circuit reverse voltage gain