Explore topic-wise MCQs in Electrical Engineering.

This section includes 13 Mcqs, each offering curated multiple-choice questions to sharpen your Electrical Engineering knowledge and support exam preparation. Choose a topic below to get started.

1.

Find the time taken for the current in an inductor to change to 2A from 0A if the power in the inductor is 5W. The value of inductance is 10H.

A. 1s
B. 2s
C. 3s
D. 4s
Answer» E.
2.

Calculate the current in an inductor if the energy stored is 160J and the inductance is 20H.

A. 1A
B. 2A
C. 3A
D. 4A
Answer» E.
3.

Calculate the value of emf in an inductor if the value of inductance is 15H and an average current of 5A flows through it in 10s.

A. 15V
B. 7.5V
C. 10V
D. 5.5V
Answer» C. 10V
4.

What is the energy stored in the magnetic field if the current in a coil has a constant inductance of L henrys grows at a uniform rate?

A. LI/2
B. LI2/2
C. L/2I
D. L/2I2
Answer» C. L/2I
5.

CALCULATE_THE_CURRENT_IN_AN_INDUCTOR_IF_THE_ENERGY_STORED_IS_160J_AND_THE_INDUCTANCE_IS_20H.?$

A. 1A
B. 2A
C. 3A
D. 4A
Answer» E.
6.

Find_the_time_taken_for_the_current_in_an_inductor_to_change_to_2A_from_0A_if_the_power_in_the_inductor_is_5W._The_value_of_inductance_is_10H.$

A. 1s
B. 2s
C. 3s
D. 4s
Answer» E.
7.

Calculate the value of emf in an inductor if the value of inductance is 15H and an average current of 5A flows through it in 10s?

A. 15V
B. 7.5V
C. 10V
D. 5.5V
Answer» C. 10V
8.

Calculate the emf induced in an inductor if the inductance is 10H and the current is 2A in 4s.

A. 2.5V
B. 1.5V
C. 3.5V
D. 5V
Answer» B. 1.5V
9.

Calculate the value of stored energy in an inductor if the value of inductance is 20H and 4A of current flows through it.

A. 220J
B. 150J
C. 190J
D. 160J
Answer» E.
10.

Calculate the power in an inductive circuit if the inductance is 10H, the current flowing in the inductor is 2A in 4s.

A. 50W
B. 4W
C. 5W
D. 10W
Answer» D. 10W
11.

Find the average current in an inductor if the total current in the inductor is 26A.

A. 10A
B. 26A
C. 13A
D. 5A
Answer» D. 5A
12.

What is the power in the magnetic field if the current in a coil has a constant inductance of L henrys grows at a uniform rate?

A. LI/2t
B. LI<sup>2</sup>/2t
C. L/2It
D. L/2I<sup>2</sup>t
Answer» C. L/2It
13.

If the current in a coil having a constant inductance of L henrys grows at a uniform rate, what is the value of the average current?

A. I
B. I/2
C. I/4
D. 0
Answer» C. I/4