. The region between two concentric spheres of radii a and b
respectively(see figure), 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 :
Best Answer
Explanation:
Let us find total charge enclosed in a sphere of radius r,
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