A thin, uniformly charged spherical shell has a potential of 646 Volt on its surface. Outside the sphere, at a radial distance of 15 centimeter from this surface, the potential is 438 Volt.
Determine what the radius of the sphere.
Compute what the total charge on the sphere.
Find the electric potential inside the sphere at a radius of 1.0 centimeter?
Find the magnitude of the electric field at the surface of the sphere.
If an electron starts from rest at a distance of 15.0 centimeter from the surface of the sphere, find the electron speed when it reaches the sphere's surface.