Question

The region between two concentric spheres of radii ‘a’ and ‘b’, respectively, has volume charge density ρ=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:⁸​

Answer 1

Answer:

Q2πa^2

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