A sphere of radius `0.03m` is suspended within a hollow sphere of radius `0.05m`. If the inner sphere is charged to a potential of `1500` volt and outer sphere is earthed. Find the capacitance and the charge of the inner sphere.

A sphere of 4 cm radius is suspended within a hollow sphere of 6 cm radius. The inner sphere is charged to potential 3 e.s.u. and the outer sphere is earthed. The charge on the inner sphere is

A sphere of 4 cm radius is suspended within a hollow sphere of 6 cm radius. The inner sphere is charged to potential 3 e.s.u. and the outer sphere is earthed. The charge on the inner sphere is

A hollow metallic sphere of radius 0.1 m is charged to a potential of 5 V. The potential at its centre is

Figure shows a solid conducting sphere of radius 1 m. enclosed by a metallic shell of radius 3 m such that their centress coincide. If outer shell is given a charge of 6 mu C and inner sphere is earthed, find megnitude charge on the surface of inner shell

A conducting sphere of radius R is charged to a potential of V volts. Then the electric field at a distance r ( gt R) from the centre of the sphere would be

A hollow metal sphere of radius 10 cm is charged such that the potential on its surface is 5 V. What is the potential at the centre of the sphere?

A hollow metal sphere of radius 10 cm is charged such that the potential on its surface is 5 V. What is the potential at the centre of the sphere?

A solid sphere of radius R has a charge +2Q . A hollow spherical concentric with the first sphere that has net charge -Q. (a) Find the electric field between the spheres at a distance r from the centre of the inner sphere. [R ltr lt3R] (b) Calculate the potential difference between the spheres. (c) What would be the final distribution of charges, if a conducting wire joins the spheres? (d) Instead of (c), if the inner sphere is earthed, what is the charge on it?

A hollow metal sphere of radius 6 cm is charged such that the potential on its surface is 12 V.What is the potential at the centre of the sphere?

A hollow metal sphere of radius 5 cm is charged so that the potential on its surface is 10 V . The potential at the centre of the sphere is