A point charge +Q is placed at the centre O of an uncharged hollow spherical conductor of inner radius 'a' and outer radius 'b'. Find the following:
The magnitude and sign of the charge induced on the inner and outer surface of the conducting shell.

A point charge +Q is placed at the center O of an uncharged hollow spherical conductor of inner radius 'a' and outer radius 'b'. Find the following: The magnitude of electric field vector at a distance (i) r=a/2 and (ii) r=2b from the centre of the shell.

Fill ups A point charge is placed at the centre of a hollow conducting sphere of internal radius 'r' and outer radius '2r'. The ratio of the surface charge density of the inner surface to that the outer surface will be…………….. .

A spherical conducting shell of inner radius r_1 and outer radius r_2 has a charge Q. A charge q is placed at the centre of the shell. What is the surface charge density on the inner and outer surfaces of the shell?

A conductor A with cavity as shown in the figure a charge Q. Show that the entire charge must appear on the outer surface of the conductor.

A spherical conducting shell of inner radius r_1 and outer radius r_2 has a charge Q as shown in the figure. A charge q is placed at the centre of the shell. What is the surface charge density of the inner and outer sufaces of the shell?

A charge of +1 C is placed at the centre of a spherical shell of radius 10 cm. what will be the work done in moving a charge of +1muC on its surface through a distance of 5 cm?

A spherical conducting shell of inner radius r_1 and outer radius r_2 has a charge Q: Is the electric field in a cavity (with no charge) zero even if the shell is not spherical, but has any irregular shape? Explain.

Two concentric hollow spheres are arranged as shown in the figure. If a charge +Q is given to the outer sphere, find charge induced on the inner sphere.

A conductor A with a cavity as shown in Fig. 1.36(a) is given a charge Q. Show that the entire charge must appear on the outer surface of the conductor.: