# 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) = 12t^{2} 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 t^{3}

d) 4 t^{3}

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, V_{C} is zero at t=0 s. For t>0, the capacitor current I_{C}(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 V_{AB} (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, R_{eq} is ___________

a) 10 Ω

b) 11.86 Ω

c) 11.18 Ω

d) 25 Ω

10. Given that, R_{1} = 36 Ω and R_{2} = 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 V_{1} 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