A hollow conducting sphere has an inner radius of r1 = 0.19 m and an outer radius of r2 = 0.35 m. The sphere has a net charge of Q = 9.3E-06 C.
1- What is the field E in N/C 1 m from the sphere's outer surface?
2- What is the magnitude of the field at a distance of 0.05 m from the center of the sphere?