# Advanced Problems on Network Theorems – 2 MCQ’s

This set of Network Theory Multiple Choice Questions & Answers (MCQs) focuses on “Advanced Problems on Network Theorems – 2″.

1. A voltage waveform V(t) = 12t2 is applied across a 1 H inductor for t ≥ 0, with initial electric current through it being zero. The electric current through the inductor for t ≥ 0 is given by __________
a) 12 t
b) 24 t
c) 12 t3
d) 4 t3

2. The linear circuit element among the following is ___________
a) Capacitor
b) Inductor
c) Resistor
d) Capacitor & Inductor

3. A network contains linear resistors and ideal voltage source s. If values of all the resistors are doubled, then voltage across each resistor is __________
a) Halved
b) Doubled
c) Increases by 2 times
d) Remains same

4. In the circuit shown, VC is zero at t=0 s. For t>0, the capacitor current IC(t), where t is in second, is ___________

a) 0.50 e-25t mA
b) 0.25 e-25t mA
c) 0.50 e-12.5t mA
d) 0.25 e-6.25t mA

5. For the circuit given below, the driving point impedance is given by, Z(s) = 0.2ss2+0.1s+2. The component values are _________

a) L = 5 H, R = 0.5 Ω, C = 0.1 F
b) L = 0.1 H, R = 0.5 Ω, C = 5 F
c) L = 5 H, R = 2 Ω, C = 0.1 F
d) L = 0.1 H, R = 2 Ω, C = 5 F

6. The switch S is the circuit shown in the figure is ideal. If the switch is repeatedly closed for 1 ms and opened for 1 ms, the average value of i(t) is ____________

a) 0.25 mA
b) 0.35 mA
c) 0.5 mA
d) 1 mA

7. In the circuit given below, the phasor voltage VAB (in volt) is _________

a) Zero
b) 5∠30°
c) 12.5∠30°
d) 17∠30°

8. What is the power loss in the 10 Ω resistor in the network shown in the figure below?

a) 15.13 W
b) 11.23 W
c) 16 W
d) 14 W

9. In the circuit given below the value of resistance, Req is ___________

a) 10 Ω
b) 11.86 Ω
c) 11.18 Ω
d) 25 Ω

10. Given that, R1 = 36 Ω and R2 = 75 Ω, each having tolerance of ±5% are connected in series. The value of resultant resistance is ___________
a) 111 ± 0 Ω
b) 111 ± 2.77 Ω
c) 111 ± 5.55 Ω
d) 111 ± 7.23 Ω

11. The energy required to charge a 10 μF capacitor to 100 V is ____________
a) 0.01 J
b) 0.05 J
c) 5 X 10-9 J
d) 10 X 10-9 J

12. A particular electric current is made up of two component: a 10 A and a sine wave of peak value 14.14 A. The average value of electric current is __________
a) 0
b) 24.14 A
c) 10 A
d) 14.14 A

13. In the circuit of figure below a charge of 600 C is delivered to 100 V source in a 1 minute. The value of V1 is ___________

a) 30 V
b) 60 V
c) 120 V
d) 240 V

14. Among the following, the active element of electrical circuit is ____________
a) Voltage source
b) Current source
c) Resistance
d) Voltage and current source both

15. In the circuit given below, the source current is _________

a) 2 A
b) 3 A
c) 0.54 A
d) 1.5 A