Find the gravitational potential due to a spherical shell of mass `M` and radius `R` at `r lt R` and `r gt R`, where `r` is the distance from the centre of the shell.

Which one of the following plots represents the variation of the gravitational field on a particle with distance r due to a thin spherical shell of raduis R ? ( r is measured from the centre of the spherical shell).

A point charge Q is placed inside a conducting spherical shell of inner radius 3R and outer radius 5R at a distance R from the centre of the shell. The electric potential at the centre of the shell will be

The electrostatic potential of a uniformly charged thin spherical shell of charge Q and radius R at a distance r from the centre

Using Gauss' law deduce the expression for the electric field due to a uniformly charged sperical conducting shell of radius R at a point (i) outside and (ii) inside the shell. Plot a graph showing variation of electric field as a function of r gt R and r lt R . (r being the distance from the centre of the shell)

Figure shows a hemispherical shell of mass M and radius R and a concentric shell of mass m and radius 3R/4.

A thin spherical shell of mass M and radius R has a small hole. A particle of mass m released at its mouth. Then

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 point charge q is placed inside a conducting spherical shell of inner radius 2R and outer radius 3R at a distance of R fro the centre of the shell. The electric potential at the centre of shell will (potential at infinity is zero).

The electric field at a distance 3R//2 from the centre of a charge conducting spherical shell of radius R is E . The electric field at a distance R//2 from the centre of the sphere is

The electric field at a distance 3R//2 from the centre of a charge conducting spherical shell of radius R is E . The electric field at a distance R//2 from the centre of the sphere is