Electrostatics ...

In figure +Q charge is located at one of the edge of the cube, then electric flux through cube due to +Q charge is

On rotating a point charge having a charge q around acharge Q in a circle of radius r. The work done will be

Two parallel metal plates having charges +Q and –Q face each other at a certain distance between them. If the plates are now dipped in kerosene oil tank, the electric field between the plates will

The number of electrons to be put on a spherical conductor of radius 0.1 m to produce and electric field of 0.036 N/C just above its surface is

Two plates are 2 cm part, a potential difference of 10 volt is applied between them, the electric fieldbetween the plates is

The intensity of the electric field required to keep a water drop of radius 10^–5 cm just suspended in air when charged with one electron is approximately
(g = 10 newton kg/ e = 1.6 × 10^–19 coulomb)

There is an electric field E in X-direction. If the work done moving a charge 0.2C through a distance of 2 m along a line making an angle 60° with the X-axis is 4.0,what is the value of E?

Four equal charges Q are placed at the four corners of a square of each side is \'a\'. Work done in removing acharge –Q from its centre to infinity is