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A spherically symmetric charge distribution has a charge density given by p = a/r, where a is constant. Find the electric field as a function of r. (Suggestion: The charge within a sphere of radius R is equal to the integral of 1 dV, where r extends from 0 to R. To evaluate the integral, note that the volume element dV for a spherical shell of radius r and thickness dr is equal to 4(r 2dr) |
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