We have a solid cylinder of radius R0, and it has a uniform charge density p. The length is much greater than its radius, so it appears almost infinite.
Find the electric field inside the cylinder where r<R0 and outside the cylinder where r>R0
The Attempt at a Solution
I know that you need to use Gauss's law on this and I believe that for inside the cylinder it will be E= p/(pi*r^2*ε0)
Will it be the same for outside the insulator?