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A solid conducting sphere of radius a carries a net positive charge 2Q. A conducting spherical...

A solid conducting sphere of radius a carries a net positive charge 2Q. A conducting spherical shell of inner radius b and outer radius c is concentric with the solid sphere and carries a net charge –Q. Let c > b > a.

a) Discuss the distribution of the charges.

b) Calculate the surface charge density on the three surfaces i. radius a ii. radius b iii. radius c.

c) Find the electric field in all the regions. Express this as a function of r measured from the center of the spheres

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