Question: How much work is required to assemble a uniform ball of charge with total (final) charge Q and radius R? Hint: This is the

How much work is required to assemble a uniform ball of charge with total (final) charge Q and radius R? Hint: This is the same as the potential energy of the uniform ball of charge. You can compute the work directly by bringing a charge do in from infinity against the electric field of the charge already there as a sphere of radius r, or you can similarly integrate dU = V dq in layers. R y

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