Top 350+ Solved Electromagnetics MCQ Questions Answer

From 406 to 420 of 442

Q. Find the gradient of t = x2y+ ez at the point p(1,5,-2)

a. i + 10j + 0.135k

b. 10i + j + 0.135k

c. i + 0.135j + 10k

d. 10i + 0.135j + k

  • b. 10i + j + 0.135k

Q. + z2 at (1,1,1)

a. i + j + k

b. 2i + 2j + 2k

c. 2xi + 2yj + 2zk

d. 4xi + 2yj + 4zk

  • b. 2i + 2j + 2k

Q. ,2,5) is (in Joule)

a. 0.64

b. 0.72

c. 0.78

d. 0.80

  • b. 0.72

Q. /x) j + 5 k.

a. -8.014

b. -8.114

c. -8.214

d. -8.314

  • c. -8.214

Q. and 1, y = 0 and 2, z = 0 and 3.

a. 10

b. 12

c. 14

d. 16

  • b. 12

Q. j.

a. 20

b. 70/3

c. 80/3

d. 30

  • c. 80/3

Q. 5 X 10-7 C, both the charges are in vacuum.

a. 0.03

b. 0.05

c. 0.07

d. 0.09

  • d. 0.09

Q. cm in vacuum(in 10-8C)

a. 4

b. 2

c. 8

d. 6

Q. ,1,1)m?

a. 10-6

b. -10-6

c. 106

d. -106

  • b. -10-6

Q. 14 units?

a. 1

b. 0.75

c. 0.5

d. 0.25

  • d. 0.25

Q. ,1,3).

a. 105

b. 106

c. 107

d. 108

  • b. 106

Q. Calculate the energy in the 4F capacitor.

a. 128kj

b. 1.28kj

  • c. 12.8kj d) 1280j

Q. Calculate the energy stored in the combination of the capacitors.

a. 192kj

b. 1.92kj

c. 19.2kj

d. 1920j

  • c. 19.2kj
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