Three concentric metallic spheres A, B and C of radii 1m, 2m and 3m respectively are charged to 0.56 nC, 2.12 nC and 5.0 nC. Calculate the potentials of the spheres.

There are three concentric hollow spheres of radii a , b and c and they are charged with charges q_1, q_2 and q_3 respectively. Calculate the potentials of each of the spheres

There are three conecentric hollow spheres of radii a, b and c and they are charged with charges q_(1),q_(2) and q_(3) respectively. Calculate the potential of the spheres.

Two metal spheres of radii 0.01 m and 0.02 m are given a charge of 15mC and 45mC respectively. They are then connected by a wire. The final charge on the first sphere is _____ xx10^(-3)C

Three point charges +10nC,-15nC and +20nC are placed at the corners A,B and C respectively of a square, ABCD of side 0.1m. Calculate the amount of work done to transfer -100nC from the point 'D' to the point 'O'.

A square of side 1.3 m has charges +12 nC, -24nC, +31nC and +17nC at its corners. Calculate the electric potnetial at the centre of the square.

A hollow spherical conductor of radius 2m carries a charge of 1nC . The electric potential at the centre of the spherical conductor is

Two point charges of 6 nC and 12 nC are placed at the corners of B and C of an equilateral triangle ABC of side 0.03 m . Calculate the magnitude of the resultant electric intensity at the vertex A of triangle.