Explore topic-wise MCQs in Electromagnetic Theory Questions and Answers.

This section includes 5 Mcqs, each offering curated multiple-choice questions to sharpen your Electromagnetic Theory Questions and Answers knowledge and support exam preparation. Choose a topic below to get started.

1.

For a charge Q1, the effect of charge Q2 on Q1 will be,

A. a)F1 = F2
B. b)F1 = -F2
C. c)F1 = F2 = 0
D. d)F1 and F2 are not equal
Answer» C. c)F1 = F2 = 0
Discussion
2.

A charge of 2 X 10-7 C is acted upon by a force of 0.1N. Determine the distance to the other charge of 4.5 X 10-7 C, both the charges are in vacuum.

A. a)0.03
B. b)0.05
C. c)0.07
D. d)0.09
Answer» E.
Discussion
3.

Two small diameter 10gm dielectric balls can slide freely on a vertical channel. Each carry a negative charge of 1μC. Find the separation between the balls if the lower ball is restrained from moving.

A. a)0.5
B. b)0.4
C. c)0.3
D. d)0.2
Answer» D. d)0.2
Discussion
4.

Find the force between two charges when they are brought in contact and separated by 4cm apart, charges are 2nC and -1nC, in μN.

A. a)1.44
B. b)2.44
C. c)1.404
D. d)2.404
Answer» D. d)2.404
Discussion
5.

Find the force of interaction between 60 stat coulomb and 37.5 stat coulomb spaced 7.5cm apart in transformer oil(εr=2.2) in 10-4 N,

A. a)8.15
B. b)5.18
C. c)1.518
D. d)1.815
Answer» E.
Discussion