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- Homework Statement
- There is given a spherical shell with an inner radius of a and an outer radius of b, and there is a point charge +Q in the center. The volume charge density of the charge in the shell is A/r where A is some constant.

Find A if the electric field inside the shell is constant.

- Relevant Equations
- Gauss' law

Hi, been a while since I last asked here something.

I am restudying electrostatics right now, and I am facing difficulties in the following question:

My attempt:

I tried to use Gauss' law, what I got is the equation in the capture but that doesn't lead me anywhere as I am unable to find a value that will result in a constant field inside the shell. What am I doing wrong?

Of course that the equation is for a<r<b

I am restudying electrostatics right now, and I am facing difficulties in the following question:

My attempt:

I tried to use Gauss' law, what I got is the equation in the capture but that doesn't lead me anywhere as I am unable to find a value that will result in a constant field inside the shell. What am I doing wrong?

Of course that the equation is for a<r<b