A point charge inside infinite dielectric material 1. The problem statement, all variables and given known data A point charge is an infinite medium of dielectric material having a relative permittivity [tex]\epsilonr[/tex]. <--- epsilon(sub r). Find the electric field vector and the potential function at any point in space, assuming that the potential is zero volts at infinity. 2. Relevant equations D = [tex]\epsilon[/tex] * E + P P = [tex]\epsilon0[/tex] * [tex]\chie[/tex] vector E [tex]\epsilon[\tex] = [tex]\epsilon0[/tex] * [tex]\epsilonr[/tex] [tex]\chie[/tex] = [tex]\epsilonr[/tex] - 1 well its not letting me put it in right so im gonna enter them in with () next to them D(vector) = epsilon*E(vector) + P(vector) P(vector) = epsilon(sub 0)*chi(sub e)*E(vector) epsilon = epsilon(sub 0)*epsilon(sub r) chi(sub e) = epsilon(sub r) - 1 Electric Field of Point Charge = k*q/r^2 Electric Field of Sphere = q/(4*pi*epsilon(sub0)*r^2) 3. The attempt at a solution Im not quiet sure what my first step would be. I would think that a point charge inside a dielectric medium would have a reduced electric field, but it is infinite so wouldnt its electric field be nothing?