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

This section includes 6 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.

If V = 2x2y + 20z – 4/(x2 + y2), find the density at A(6, -2.5, 3) in nC/m2.

A. a)0.531i – 0.6373j – 0.177k
B. b)0.6373i – 0.177j -0.531k
C. c)0.177i – 0.6373j – 0.531k
D. d)0.531i – 0.177j – 0.6373k
Answer» B. b)0.6373i – 0.177j -0.531k
Discussion
2.

If the potential is given by, V = 10sin θ cosφ/r, find the density at the point P(2, π/2, 0)

A. (in 10-12 units)
B. a)13.25
C. b)22.13
D. c)26.31
E. d)31.52
Answer» C. b)22.13
Discussion
3.

Find the work done moving a charge 2C having potential V = 24volts is

A. a)96
B. b)24
C. c)36
D. d)48
Answer» E.
Discussion
4.

If potential V = 20/(x2 + y2). The electric field intensity for V is

A. 40(x i + y j)/(x2 + y2)2. State True/False.
B. a)True
C. b)False
Answer» B. a)True
Discussion
5.

Find the electric flux density surrounding a material with field intensity of 2xyz placed in transformer oil ( εr = 2.2) at the point P(1,2,3) is

A. (in 10-10 units)
B. a)2.1
C. b)2.33
D. c)2.5
E. d)2.77
Answer» D. c)2.5
Discussion
6.

Find the potential at a point (4, 3, -6) for the function V = 2x2y + 5z.

A. a)96
B. b)66
C. c)30
D. d)-66
Answer» C. c)30
Discussion