A charge 'Q' is distributed over two concentric hollow spheres of radii 'r' and 'R' (gtr) such that the surface densities are equal. Find the potential at the common centre.

A charge Q is distributed over two concentric hollow spheres of radii r and R (gt r) such that the surface charge densities are equal. Find the potential at the common centre.

A charge Q is distributed over two concentric hollow spheres of radii r and R (gt r) such that the surface charge densities are equal. Find the potential at the common centre.

A charge Q is distributed over two concentric hollow spheres of radii r and R (gt r) such that the surface charge densities are equal. Find the potential at the common centre.

A charge Q is distributed over two concentric hollow spheres of radii r and R (gt r) such that the surface charge densities are equal. Find the potential at the common centre.

A charge Q is distributed over two concentric hollow spheres of radii r and R (gt r) such that the surface charge densities are equal. Find the potential at the common centre.

A charge Q is distributed over two concentric hollow spheres of radii r and R where R>r. such that the surface densities are equal. Find the potential at the common centre.

A charge q is distributed over two concentric hollow spheres of raddii r and R such that the surface densities are equal. Find the potential at the common centre.