[" A disc of radius "R" is charged uniformly "],[" with surface charge density "sigma." The "],[" electric potential at a point "'P'" lying on "],[" its axis at a distance 'r' from the centre "],[" is "]

A uniform disc of radius R is charged with a uniform surface charge density sigma . Find the electric potential due to the charges on the disc at a point on its edge. [(sigmaR)/(piin_(0))]

Find the electric field caused by a disc of radius a with a uniform surfce charge density sigma (charge per unit area) at a point along the axis of the disc a distance x from its centre.

Find the electric field caused by a disc of radius a with a uniform surfce charge density sigma (charge per unit area) at a point along the axis of the disc a distance x from its centre.

The diagram shows a part of disc of radius R carrying uniformly distributed charge of density sigma . Electric potential at the centre O of parent disc is

A ring of radius R is charged uniformly with a charge +Q . The potential at a point on its axis at a distance 'r' from any point on ring will be-

A point charge q is located at the centre fo a thin ring of radius R with uniformly distributed charge -q , find the magnitude of the electric field strength vectro at the point lying on the axis of the ring at a distance x from its centre, if x gt gt R .

A point charge q is located at the centre fo a thin ring of radius R with uniformly distributed charge -q , find the magnitude of the electric field strength vectro at the point lying on the axis of the ring at a distance x from its centre, if x gt gt R .

A sphere of radius R has a charge density sigma . The electric intensity at a point at a distance r from its centre is

Two concentric spheres of radii R and r have similar charges with equal surface charge densities (sigma) . The electric potential at their common centre is