1. The problem statement, all variables and given/known data Two non conductive shells surround each other, with radius r1, r2 and charges q1, q2 respectively. Find electric fields for E(r < r1), E(r1 < r < r2), E(r > r2) r1 is the inner shell, r2 is the outer shell (r1 < r2) 2. Relevant equations I'm using gauss' law flux = E * A = q_enclosed / epsilon_not 3. The attempt at a solution E(r < r1) = 0 E(r1 < r < r2) = q1 / 4 * pi * episolon_not * r^2 I'm confused on E(r > r2), what is the charged enclosed for two surrounding non conductive shells? Would I add up the charge from both (q1 + q2)? or would it only be the charge on the outer shell q2? I don't know what is significant about the shells being "non conductive" vs "conductive" what is the difference? please respond.