Explore topic-wise MCQs in Network Theory.

This section includes 11 Mcqs, each offering curated multiple-choice questions to sharpen your Network Theory knowledge and support exam preparation. Choose a topic below to get started.

1.

A voltage is defined by \(v(t)=\begin{cases}0\\2t\\4e^{-(t-2)}\\\end{cases} \) for \(\begin{cases}t < 0 \\0

A. i = 0 for t < 0
B. i = 20µA for 0 < t < 2s
C. i = 40et-2µA for t > 2s
D. i = -40et-2µA for t > 2s
Answer» D. i = -40et-2µA for t > 2s
Discussion
2.

Which of the following is not the energy stored in a capacitor?

A. \(\frac{CV^2}{2}\)
B. \(\frac{QV}{2}\)
C. \(\frac{Q^2}{2C}\)
D. \(\frac{QC}{2}\)
Answer» E.
Discussion
3.

The capacitance of a capacitor does not depend on the absolute permittivity of the medium between the plates.

A. True
B. False
Answer» C.
Discussion
4.

An inductor of 3mH has a current i = 5(1 – e-5000t). Find the corresponding maximum energy stored.

A. 37.5 mJ
B. 375 J
C. 37.5 kJ
D. 3.75 mJ
Answer» B. 375 J
Discussion
5.

Energy stored in an inductor is ________

A. LI
B. LI2
C. LI/2
D. LI2/2
Answer» E.
Discussion
6.

Inductance of an inductor is inversely proportional to its ___________

A. Number of turns
B. Area of cross section
C. Absolute permeability
D. Length
Answer» E.
Discussion
7.

Unit of inductance is ________

A. Weber
B. Henry
C. Farad
D. Tesla
Answer» C. Farad
Discussion
8.

A 25 Ω resistor has a voltage of 150 sin377 t. Find the corresponding power.

A. 900 sin2 337 t
B. 90 sin2 337 t
C. 900 sin2 377 t
D. 9 sin2 337 t
Answer» D. 9 sin2 337 t
Discussion
9.

Resistance depends on the temperature of the conductor.

A. True
B. False
Answer» B. False
Discussion
10.

A conductor is said to have resistance of one ohm if a potential difference of one volt across its terminals causes a current of X ampere to flow through it. What will be the value of X?

A. 4
B. 2
C. 3
D. 1
Answer» E.
Discussion
11.

Energy per unit charge is ____________

A. Power
B. Voltage
C. Current
D. Capacitance
Answer» C. Current
Discussion