Consider two concentric spherical shells, of radii a and b. Suppose the inner one carries a charge
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Consider two concentric spherical shells, of radii a and b. Suppose the inner one carries a charge q, and the outer one a charge – q (both of them uniformly distributed over the surface). Calculate the energy of this configuration,
(a) Using Eq. 2.45, and
(b) Using Eq. 2.47 and the results of Ex. 2.8.
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