The region between two concentric spheres of radii 'a' and 'b', respectively (see figure),
Channel: Doubtnut
Date: 2020-07-05

The region between two concentric spheres of radii 'a' and 'b', respectively (see figure), have volume charge density `rho=A/r`, where A is a constant and r is the distance from the centre. At the centre of the spheres is a point charge Q. The value of A such that the electric field in the region between the spheres will be constant, is: