A hollow charged metal sphere has radius `r`. If the potential difference between its surface and a point at a distance `3r` from the centre is V, then electric field intensity at a distance `3r` is

If radius of a hollow metallic sphere is .R.. If the P.D between it.s surface and a point at a distance 3R from it.s centre is V then the electric field intensity at a distance 3R from it.s centre is

A hollow metal sphere of radius 5 cm is charged such that the potential on its surface is 10V . The potential at the distance 3 cm from the centre of the sphere is:

A hollow metal sphere of radius 5 cm is charged such that the potential on its surface is 10V . The potential at the distance 3 cm from the centre of the sphere is:

A hollow metal sphere of radius 5 cm is charged such that the potential on its surface is 10V . The potential at the distance 3 cm from the centre of the sphere is:

A hollow metal sphere of radius 5 cm is charged such that the potential on its surface is 10 V . The potential at a distance of 2 cm from the centre of the sphere

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

The spherical shell has radius r. The potential difference V is between centre to distnnce 3r. The electric field at a distance 3r will be ........