(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

The spherical region a < r < b carries a charge per unit volume of [tex]\rho[/tex] = A/r, where A is a constant. At the center (r = 0) of the enclosed cavity is a point charge q. What should be the value of A so that the electric field in the region a< r < b has constant magnitude?

The answer says A = q/(2pi a^{2})

2. The attempt at a solution

I drew a sphere with radius r as a Gaussian surface.

My work is in the attachment.

I got stuck from that point. I need help :!!)

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# Homework Help: Problem on Gauss's Law

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