MCQs of Static Electric Fields (Electromagnetics Field - 3140912)

Showing 71 to 80 out of 96 Questions

71.

A point charge of 5 nC is located at the origin, if potential V = 2 V at point P(0,6,-8), then the potential at point (-3,2,6) will be ________.

72.

Uniform surface charge with density

20 n C / m^{2}

is present on the spherical surface of radius 0.6 cm in free space. The potential at point

B (1 c m, 25 °, 50 °)

will be ____________ .

73.

Two point charges each of 6nC are located at (1,0,0) and (-1,0,0) in a free space. Find the value of maximum potential

V_{m a x}

on z-axis.

74.

Point charge of

3 μ C

and

7 μ C

are present at (0,0,0) and (0.5,0,0). Find the point between this two where electric field intensity is zero.

75.

Electric field intensity is defined as

E = 6 x^{2} a_{x} + 6 y a_{y} + 4 a_{z}

V/m. Potential between points A(2,6,-1) and B(-3,-3,2) will be _______ .

76.

Electric field intensity is defined as

E = 40 x y a_{x} + 20 x^{2} a_{y} + 2 a_{z}

V/m. Potential between points (1,-1,0) and (2,1,3) will be _________ .

77.

Electric field intensity is defined as

E = (\frac{100}{ρ}) a_{ρ}

V/m. Potential between points

(1, 90 °, 3)

and

(3, 45 °, 2)

will be __________ .

78.

Infinite length line charge with density 0.5 nC/m lies the on z-axis. The potential between points

(2, 90 °, 0)

and

(4, 180 °, 5)

will be ________ .

79.

Electric field intensity and electric flux density are related in which of the following way?

80.

Unit of gradient of potential will be ________.

Showing 71 to 80 out of 96 Questions