1. The problem statement, all variables and given/known data A conducting sphere of radius A has a charge +Q on it and is surrounded by an insulating material whose dielectric constant varies with radius according to εr = 2exp[-(r/a-1)]2. The dielectric has a spherical outer boundary B. Find the values of D, E, P, ρ as a function of r. 2. Relevant equations εr = 2exp[-(r/a-1)]2, Gauss's Law? 3. The attempt at a solution Outside conducting sphere: D directed radially outward so using symmetrical surface integral form of Gauss law, D = q/4∏r2. E=D/ε0 = q/4∏ε0r2. Inside sphere: D=0, E=0. Not sure if this is right or what next steps to take?