A spherical capacitor, constructed of two concentric conducting spheres, is filled with an insulating material with a relative permittivity, , equal to 4. The inner sphere is held at a potential of 0 volts, and the outer sphere is held at a potential of Vo volts. The inner sphere has a radius of 'a', and the outer sphere, a radius of 5'. Show your work for full credit. • Find the potential, in the region between the spheres. (10 points) • Find the electric field intensity, E, in the region between the spheres. (5 points) • What is the surface charge density, ps, on the outer sphere?