In: Physics
Two spherical shells have a common center. A -1.00 ×
10-6 C charge is spread uniformly over the inner shell,
which has a radius of 0.050 m. A +4.00 × 10-6 C charge
is spread uniformly over the outer shell, which has a radius of
0.15 m. Find the magnitude and direction of the electric field at a
distance (measured from the common center) of
(a) 0.20 m,(b) 0.10
m,c) 0.025 m.