Van De Graaff Generator
A hollow metal sphere of radius 5 cm is charged such that the potential on its surface is 10 V. The potential at the centre of the sphere is
What happens when we separate insulated copper spheres of radii 10 cm and 15 cm, having equal charges which are initially connected by a copper wire?
The force of attraction between two charged spheres separated by a distance ‘r’ is proportional to