Two spherical shells have a common center. A -1.00x10-6 C charge is spread uniformly over the inner shell,which has a radius of 0.050 m. A +5.00 x10-6 C charge isspread uniformly over the outer shell, which has a radius of 0.15m. Find the magnitude and direction of the electric field at adistance (measured from the common center) of
(a) 0.20 m,
E =
(b) 0.10 m,
E =
(c) 0.025 m.
E =