Figure shows two conducting thin concentric shells of radi `r` and `3r`. The outer shell carries a charge q. Inner shell in neutral. Find the charge that wilL flow from inner shell to earth the switch S is closed.

Figure 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 ? .

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,

there are two concentric metallic shells of radii R and 2R, if outer shell is given charge q_1 , then charge on surface of inner shell will be

Consider two concentric spherical metal shells of radii r_(1) and r_(2) (r_(2) gt r_(1)) . If the outer shell has a charge q and the inner one is grounded, then the charge on the inner 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

There are two thin concentric conducting shells of radii a and b(a lt b) . Equal charges Q given to each shell. Find the charge distribution on the inner and outer shell.

Consider two concentric spherical metal shells of radii 'a' and bgt a .The outer shell has charge Q but the inner shell has no charge.Now the inner shell is grounded ,This means that the inner shell will come at zero potential and that electric fields lines leave the outer shell and end on the inner shell.(a) Find the charge on the inner shell Find the potential on outer sphere.

Two concentric conducting spherical shells of radii a_1 and a_2 (a_2 gt a_1) are charged to potentials phi_1 and phi_2 , respectively. Find the charge on the inner shell.

There are three conducting and concentricspherical shells of radii R,2R and 3R. The charge on inner and outer most shells are q and 3q while middle shell is earthed. Find the ratio of number of field lines emitted by outermost shell and inner shell.