52 Electric PotentialQ25.8No. The uniformly charged sphere, whether hollow or solid metal, is an equipotential volume. Sincethere is no electric field, this means that there is no changein electrical potential. The potential atevery point inside is the same as the value of the potential at the surface.Q25.9Infinitely far away from a line of charge, the line will not look like a point. In fact, without anydistinguishing features, it is not possible to tell the distance from an infinitely long line of charge.Another way of stating the answer: The potential would diverge to infinity at any finite distance, if itwere zero infinitely far away.Q25.10The smaller sphere will. In the solution to the example referred to, equation 1 states that each willhave the same ratio of charge to radius, qr. In this case, the charge density is a surface chargedensity, qr42π, so the smaller-radius sphere will have the greater charge density.
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