A spherical capacitor contains a solid spherical conductor ofradius 0.1 mm with a charge of 3.7 microCoulombs, surrounded by adielectric material with ?r=1.5 out to a radius of0.8 mm, then an outer spherical non-conducting shell, with variablecharge per unit volume ?=3r2, with outer radius 1.0mm. Determine the electric field everywhere.