For a spherically symmetrical charge distribution electric field at a distance r from the centre of sphere is `vec(E)=kr^(2)hat(r)` where k is a constant what will be the volume charge density at a distance r from the centre of sphere?

For spherically symmetrical charge distribution, electric field at a distance r from the centre of sphere is vec(E)=kr^(7) vec(r) , where k is a constant. What will be the volume charge density at a distance r from the centre of sphere?

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

A solid sphere of radius R has total charge Q. The charge is distributed in spherically symmetric manner in the sphere. The charge density is zero at the centre and increases linearly with distance from the centre. (a) Find the charge density at distance r from the centre of the sphere. (b) Find the magnitude of electric field at a point ‘P’ inside the sphere at distance r_1 from the centre.

If the potential at the center of a uniformly charged sphere of radius R is V then electric field at a distance r from the center of sphere will be ( r lt R ) : -

A non-conducting spherical ball of radius R contains a spherically symmetric charge with volume charge density rho=kr^(2) where r is the distance form the centre of the ball and n is a constant what should be n such that the electric field inside the ball is directly proportional to square of distance from the centre?

The electric field at 2R from the centre of a uniformly charged non - conducting sphere of rarius R is E. The electric field at a distance ( R )/(2) from the centre will be

A sphere of radius R has a charge density sigma . The electric intensity at a point at a distance r from its centre is

If the potential at the centre of a uniformly charged hollow sphere of radus R is V, then electric field at a distance r from the centre of sphere will be (rgtR) .