Two conducing concentric hollow spheres of radii a and 2a respectively are shown in the diagram. The inner shell has net charge Q on its surface. The outer shell is neutral. If the outer shell is connected to the earth the heat generated through the connecting wire is 2a

Two thin conducting shells of radii R and R ar shown in figure . The outer shell carries a charge +Q and the inner shell is neutral. The inner shell is earthed with the help of switch S . Find the charge attained by the inner shell. .

Two thin conducting shells of radii R and 3R are as shown in the fig. External shell carries a charge +Q and inner shell neutral. The inner shell is earthed with the help of a switch S . Then

Consider two concentric metalic shell's of radii R and 2R. The inner shell is having charge Q and outer shell is uncharged. If they are connected with a conducting wire. Then,

Three concentric conducting sphereical shells carry charges +4Q ot e inner shell -2Q on the middle shel and +6Q on the outer shell. The charge on the inner surface of the outer shell is

There are two concentric conducting spherical shells of radii 10 cm and 20 cm. The outer shell is charged to a potential of 50esu while inner shell is earthed. The charge on outer shell is

The radii of two concentric spherical conducting shells are r_(1) and r_(2)(gt r_(1)) . The change on the oute shell is q. The charge on the inner shell which is connected to the earth is

Two concentric thin conducting sphereical shells having radii R and 2R are as shown in the figure .A charge +Q is given to the shell A and -4Q is given to the shell B .If A and B are connected by a thin conducting wire then the amount of heat produced after the connection is

(Figure 3.158) shows two conducting thin concentric shells of radii r and 3 r . The outer shell carries charge q and the inner shell is neutral . The amount of charge that flows from the inner shell to the earth after the key K is closed is equal to (1//n)^(th) of the charge on the outer shell. What is the value of n ? .

In (Fig. 3.73), if the inner shell has charge +q_0 and the outer shell is earthed, then . i. determine the charge on the outer shell, and ii. find the potential of the inner shell.