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In Figure, a solid sphere of radius a is concentric with a spherical conducting shell of...

In Figure, a solid sphere of radius a is concentric with a spherical conducting shell of inner radius b = 2.00a and outer radius c = 2.40a. The sphere has a net uniform charge q1 (> 0); the shell has a net charge q2 = -q1.What is the magnitude of the electric field at radial distances (a) r = 0, (b) r = a/2.00, (c) r = a, (d) r = 1.50a, (e) r = 2.30a, and (f)r = 3.50a? What is the net charge on the (g) inner and (h) outer surface of the shell?

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