(a) A conductor A with a cavity as shown in Fig, is given a charge Q. Show that the entire charge must appear on the outer surface of the conductor.
(b) Another condutor B with charge q is inserted into the cavity keeping B insulated from A. Show that the total charge on the outside surface of A si $(Q+q)$ fig.
(c) A sensitive instument is to be shielded from the strong electrostatic field in its enviroment. Suggest a possibe way.

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

Another conductor B with charge q is inserted into the cavity keeping B insulated from A. Show that the total charge on the outside surface of A is Q+q
(c) A sensitive instrument is to be shielded from the strong electrostatic fields in its environment. Suggest a posible way.

Show that the electric field at the surface of a charged conductor is proportional to the surface charge density.

Work done in moving a charge q coulomb on the surface of given charged conductor of potential V is

Find the electric field at (A) (a) due to q, (b) due to charges induced on the inner surface of the shell and (c ) due to charges induced on the outer surface of the shell (Fig. 22-41).

Let at any instant point charge is at x distance from centre
Q. Net charge on surface of conductor at this instant

(a) A conductor having cavity C is charged as shown in Fig. What is electricfied inside the cavity ? Does the result depend upon the shape and size of the cavity ?

(b) Can Gauss's law tell us exactly where teh charge is located inside the Gaussian surface ?

There is a conductor with cavity of radius $R$ as shown in figure. A point charge $Q$ is placed at $R/2$ distance from centre of cavity.
A point $P$ is at $r$ distance from centre of conductor. Then,

There is a cubical cavity inside a conducting sphere of radius R. A positive point charge Q is placed at the centre of the cube and another positive charge q is placed at a distance $1(>R)$ from the centre of the sphere. The sphere is earthed

Net charge on the outer surface of conducting sphere is

An ellipsoidal cavity is carved within a perfect conductor. A positive charge q is placed at the centre of the cavity. The points A and B are on the cavity surface as shown in the figure. Then

The ratio of charge on left surface of plate A to the charge on the right surface of plate B is +Q +3Q -20 (A) (B) (C)