1. The problem statement, all variables and given/known data A solid sphere contains a uniform volume charge density (charge Q, radius R). (a) Use Gauss’s law to find the electric field inside the sphere. (b) Integrate E^2 over spherical shells over the volumes inside and outside the sphere. (c) What fraction of the total electrostatic energy of this configuration is contained within the sphere? 2. Relevant equations https://www.physicsforums.com/latex_images/13/1397427-0.png [Broken] Qenclosed = r^3/R^3 flux= 4pi*r^2*E 3. The attempt at a solution a) E=(Q*r)/(4*pi*(epsilon0)*R^3) b) So I am thinking for this one that I need to integrate E^2 with upper limits being inside and lower limits being the outside of the sphere. what I'm not sure is if its intergral(E^2 dE) or if a value inside of E is being integrated. R or r would make sense to intergrate as well hence intergral(E dr) c) since I can't solve b, I can't solve c either.