A hollow, conducting sphere with an outer radius of 0.250m and an inner radius 0.200m has a uniform surface charge density of +6.37-6C/m2. A charge of -0.500us is now introduce into the cavity inside the sphere.
What is new charge density on the outside of the sphere?
Calculate the strength of the electric field just outside of the sphere?
What is the electric flux through spherical surface just outside the inner surface of the sphere?
