Explore topic-wise MCQs in Electromagnetic Theory.

This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Electromagnetic Theory knowledge and support exam preparation. Choose a topic below to get started.

1.

FIND_THE_MAXIMUM_FORCE_OF_THE_CONDUCTOR_HAVING_LENGTH_60CM,_CURRENT_2.75A_AND_FLUX_DENSITY_OF_9_UNITS.?$

A. 14.85
B. 18.54
C. 84.25
D. 7.256
Answer» B. 18.54
Discussion
2.

The_magnetic_force_impacts_the_energy_of_the_field._State_True/false.$

A. True
B. False
Answer» B. False
Discussion
3.

Find the flux density due to a conductor of length 6m and carrying a current of 3A(in 10-7 order?

A. 1
B. 10
C. 100
D. 0.1
Answer» B. 10
Discussion
4.

When currents are moving in the same direction in two conductors, then the force will be

A. Attractive
B. Repulsive
C. Retracting
D. Opposing
Answer» B. Repulsive
Discussion
5.

The force per unit length of two conductors carrying equal currents of 5A separated by a distance of 20cm in air(in 10-6 order)

A. 25
B. 35
C. 40
D. 50
Answer» B. 35
Discussion
6.

The force on a conductor of length 12cm having current 8A and flux density 3.75 units at an angle of 300 is

A. 1.6
B. 2
C. 1.4
D. 1.8
Answer» E.
Discussion
7.

Find the Lorentz force of a charge 2.5C having an electric field of 5 units and magnetic field of 7.25 units with a velocity 1.5m/s.

A. 39.68
B. 68.39
C. 86.93
D. 93.68
Answer» B. 68.39
Discussion
8.

Find the electric field when the velocity of the field is 12m/s and the flux density is 8.75 units.

A. 510
B. 105
C. 150
D. 165
Answer» C. 150
Discussion
9.

Find the magnetic force when a charge 3.5C with flux density of 4 units is having a velocity of 2m/s.

A. 14
B. 28
C. 7
D. 32
Answer» C. 7
Discussion
10.

Find the electric force when the charge of 2C is subjected to an electric field of 6 units.

A. 6
B. 3
C. 12
D. 24
Answer» D. 24
Discussion