A solid and a hollow metal spheres are given equal charges, which one will have higher electric potential.

The plates of a parallel-plate capacior are given equal positive charges .What will be the potential difference between the plates ? What will be the charges on the facing surfaces and on the outer surfaces ?

If a positive charge is shifted from a low - potential region to a high- potential region, the electric potential energy

An siolated metal sphere of radius 'r' is given a charge 'q' . The potential energy of the sphere is

A hollow insulated conducting sphere is given a positive charge of 10 mu C . What will be the electric field at the centre of the sphere is its radius is 2 meters ?

A solid sphere and a hollow sphere of the same material and of equal radii are heated to the same temperature.

A charge Q is placed at the centre of an uncharged, hollow metallic sphere of radius a. (a) Find the surface charge density on the inner surface and on the outer surface. (b) If a charge q is put on the sphere, what would be the surface charge densities on the inner and the outer surface?

A solid sphere and a sloid hemisphere have equal total surface area. Prove that the ratio of their volume is 3 sqrt(3) : 4 .

When the separation between two charges is increased, the electric potential energy of the charges