[" Q7.A metal cube of length "0.1m" is charged "],[" by "12 mu C" .Calculate its surface charge "],[" density "]

A metal cube of length 0.1 is charged by 12 mu C . Calculate its surface charge density.

A metal cylinder of length 2 km is charged with 2xx10^(-2)C . The linear charge density of the cylinder is

A charged belt 60 cm wide, travels at 20 ms^(-1) between a source of charge and a sphere. The belt carries charges into the sphere at a rate corresponding to 120 mu A . Calculate the surface charge density of the belt.

A metal plate of area 2m^(2) is charged with 12xx10^(-6)C . The surface surface density of charge is

A circular metal plate of radius 10 cm is given a charge of 20muC on its surface. The charge density of the plate is

The length of a straight thin wire is 2 m. It is uniformly charged with a positive charge of 3 mu C .Calculate : The charge density of the wire .

A sphere of radius1 0 cm carries a charge of 1 mu C . Calculate the electric field at the surface of the sphere

A charge Q is placed at the centre of an uncharged, hollow metallic sphere of radius alpha. (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?