Wait, how do I put Latex code into my post? I click on the "Latex" button in the bottom left corner of the text box and paste my code but it doesn't appear in the post when I post it. I'm confused.
Homework Statement
An infinite solid cylinder of radius A and uniform charge distribution ρ is surrounded by a thin cylindrical envelope of radius B and linear charge distribution λ. The two cylinders are co-axial.
Find the potential V(r) as a function of r from r=0 to r=∞.
Homework Equations...