01․ An electric field of 1.92 × 10

^{3}N/C is maintained across two plates separated by 0.015 m. Potential difference across plates will beFrom, V = E.d

02․ Which of the following statement is incorrect?

E is normal to conductor.

03․ Between a hollow and solid metal sphere, charge reside

Charge always reside outer surface of any object.

04․ The electric flux is given D = (2y

^{2}+ z) I_{x}+ 4xy I_{y}+ x I_{z}C/m^{2}. The volume charge density at point (-1, 0, 3) isDivergence of

**D**= ρ_{v}05․ Gradient of scalar field is expressed as

Gradient is operation performed on a saclar function which result in a vector function and it is the maximum rate of increase of the scalar function at a point.

06․ A vector field A = p I

_{n}is given in Cartesian coordinates. In cylindrical coordinates it will be represented as07․ A potential field is given by V = 3x

^{2}y – yz. The electric field at P(2, -1, 4) isE = - divergence v

08․ A sphere of radius with a uniform charge density ρ

_{v}C/m^{3}shall have electric flux density at radius “r = a” equal toBy Gauss’s law,
Surface integral of (D.ds) = volume integral of ρ

_{v}dv) Or, D.4π a^{2}= 4 π a^{3}ρ_{v/3.}09․ An infinite sheet has a charge density of 150 μ C/m. The flux density in μ C/m

^{2}isFor infinite sheet,
| E | = σ/(2 × ε

_{o}) | D | = σ/2 = 150/2 = 75 μC/m^{2}.10․ An infinite non conducting sheet of charge has σ of 10

^{-7}c/m^{3}. Equipotential surface for a potential of 10 volts is.E = σ/(2 × ε

_{o}) V = E.x. C = V/E = V × ε_{o}/ σ.<<<89101112>>>