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This set of Electromagnetics Multiple Choice Questions & Answers (MCQs) focuses on Electromagnetics Set 23
Q1 | Find the magnetic field intensity when the magnetic vector potential x i + 2y j + 3z k.
- 6
- -6
- 1
Q2 | The value of ∫ H.dL will be
- j
- i
- b
- h
Q3 | Given the vector potential is 16 – 12sin y j. Find the field intensity at the origin.
- 28
- 16
- 12
- 4
Q4 | The Laplacian of the magnetic vector potential will be
- –μ j
- – μ i
- –μ b
- –μ h
Q5 | Find the gradient of t = x2y+ ez at the point p(1,5,-2)
- i + 10j + 0.135k
- 10i + j + 0.135k
- i + 0.135j + 10k
- 10i + 0.135j + k
Q6 | + z2 at (1,1,1)
- i + j + k
- 2i + 2j + 2k
- 2xi + 2yj + 2zk
- 4xi + 2yj + 4zk
Q7 | i + 2xy j + 5xz2 k
- √4.01
- √4.02
- √4.03
- √4.04
Q8 | ,2,5) is (in Joule)
- 0.64
- 0.72
- 0.78
- 0.80
Q9 | /x) j + 5 k.
- -8.014
- -8.114
- -8.214
- -8.314
Q10 | πε) ln(b/a). State True/False.
- true
- false
Q11 | i in spherical coordinates with r = 4m and θ = π/2.
- 600
- 599.8
- 588.9
- 577.8
Q12 |
- 1
- 4/3
- 5/3
- 2
Q13 | and 1, y = 0 and 2, z = 0 and 3.
- 10
- 12
- 14
- 16
Q14 | in volume integral.
- 80 π
- 5 π
- 75 π
- 85 π
Q15 | , hence find charge using volume integral.
- 6100 π
- 6200 π
- 6300 π
- 6400 π
Q16 | j.
- 20
- 70/3
- 80/3
- 30
Q17 | 9
Q18 |
- 13
- 26
- 39
- 51
Q19 | 5cm apart in transformer oil(εr=2.2) in 10-4 N,
- 8.15
- 5.18
- 1.518
- 1.815
Q20 | 5 X 10-7 C, both the charges are in vacuum.
- 0.03
- 0.05
- 0.07
- 0.09
Q21 | cm in vacuum(in 10-8C)
- 4
- 2
- 8
- 6
Q22 | cm and minimises as d increases. State True/False
- true
- false
Q23 | πεh).aN. State True/False.
- true
- false
Q24 | ,1,1)m?
- 10-6
- -10-6
- 106
- -106
Q25 | 14 units?
- 1
- 0.75
- 0.5
- 0.25