A point charge q is brought slowly from infinity and is placed at the centre of a conducting neutral spherical shell of inner radius a and outer radius b, then find work done by external agent :

A point charge +q is placed at the centre of a conducting spherical shell of inner radius a and outer radius b. Find the charge appearing on the inner and outer surface of the shell.

A point charge +q is placed at the centre of a conducting spherical shell of inner radius a and outer radius b. Find the charge appearing on the inner and outer surface of the shell.

In the figure shown the elctric potential energy of the system is : (q is at the centre of the conducting neutral spherical shell of inner radius a and outer radius b )

In the figure shown the electric potential energy of the system is : (q is at the center of the conducting neutral spherical shell of inner radius a and outer radius b )

A point charge q is placed at a distance of r from the centre O of an uncharged spherical shell of inner radius R and outer radius 2R.The distance r lt R .The electric potential at the centre of the shell will be

" A charge "q_(0)" is brought from infinity to the centre of a dipole.The work done is "

A point charge Q is placed at the centre of an uncharged spherical shell of inner radius a and outer radius b. There is a small tunnel in the body of the shell. Calculate the work done to transfer the charge through the tunnel to infinity. [Hint: Remove the charge bit by bit and calculate the total work done.]

A point charge q is placed at a distance of r from the centre O of an uncharged spherical shell of inner radius R and outer radius 2R. The electric potential at the centre of the shell will be

A point charge q is placed at a distance of r from the centre O of an uncharged spherical shell of inner radius R and outer radius 2R. The electric potential at the centre of the shell will be