A charge Q is uniformly distributed on a thin spherical shell. What is the field at the centre of the shell? If a point charge is brought close to the shell, will the field at the centre change? Does your answer depend on whether the shell is conducting or nonconducting?

Assuming that a positive charge Q is uniformly distributed over the surface of a shell, the field at a distane r from the centre of the shell where r = 3R (R being the radius of the shell ), is

If a charge – 150 nC is given to a concentric spherical shell and a charge +50 nC is placed at its centre then the charge on inner and outer surface of the shell is

A conducting sphere carrying charge Q is surrounded by a spherical conducting shell. a. What is the net charge on the inner surface of the shell? b. Another charge q is placed outside the shell. Now, what is the net charge on the inner surface of the shell? c. If q is moved to a position between the shell and the sphere, what is the net charge on the inner surface of the shell? d. Are your answer valid if the sphere and shell are not concentric?

A spherical shell made of plastic, contains a charge Q distributed uniformly over its surface. What is the electric field inside the shell? If the shell is hammered to deshape it without altering the charge. Will the field inside be changed? What happend if the shell is made of a metal?

A spherical shell having charge +Q (uniformly distributed) and placed as shown. Find the force between shell and the point charge (r gt gt R) .

A spherical shell of radius R has a uniformly distributed charge ,then electric field varies as

The figure shows a spherical shell of mass M . The point a is not at the centre but away from the centre of the shell. If a particle of mass m is placed at A , then

A conducting spherical shell having inner radius a and outer radius b carries a net charge Q. If a point charge q is placed at the centre of this shell, then the surface charge density on the outer surface of the shell is given as:

A charge Q is placed at the centre of a spherical conducting shell. Choose the correct option.