a conductor in the shapr of a sperical shell of radii 8 and 11 cm is charged to 20 uC
A) find the electric field at the following radii: 2,10, and 15.
b) find the electric potential at each of these radii.
c) repeat a and b for the case of a -5uC point charge being placed at the center of the sphere.
d) sketch the electric field strength as a function of "r" the distance from the center.