1. The problem statement, all variables and given/known data Consider a long, cylindrical charge distribution of radius R with uniform charge density ρ. a) Using Gauss’s law, find the electric field at distance r from the axis, where r < R b) Using Gauss’s law, find the electric field at distance r from the axis, where r > R 2. Relevant equations ∫EdA = Qinside/ε0 q = ρV V = πr2L A = 2πrL 3. The attempt at a solution I've successfully solved the first part which is E = ρr/2ε0. However for the second part I am confused as to whether or not I would need to use big R for the area, because we are now going at a distance out of the surface or to use little r.