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An infinitely long thick hollow cylinder has inner radius Rin and outer radius Rout. It has a non-uniform volume charge density, ρ(r) = ρ

for this problem, when you find q

also, if you try to find the e-field where r > Rout, do you integrate from r to Rout?

Solution is here (problem II):

http://www.physics.gatech.edu/~em92/Classes/Fall2011/2212GHJ/main/quiz_help/200908/q2s.pdf

_{0}r/R_{out}where r is the distance from the cylinder axis. What is the electric field magnitude as a function of r, for Rin < r < Rout?for this problem, when you find q

_{inside}, do you integrate from Rin to r or from Rin to Rout? i'm confused because i would have expected it to be the latter, but in the solutions they integrate from Rin to r. can someone please explain this?also, if you try to find the e-field where r > Rout, do you integrate from r to Rout?

Solution is here (problem II):

http://www.physics.gatech.edu/~em92/Classes/Fall2011/2212GHJ/main/quiz_help/200908/q2s.pdf

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