Electric Forces and Electric Fields3Answers to Even Numbered Conceptual Questions 2.Conducting shoes are worn to avoid the build up of a static charge on them as the wearer walks. Rubber-soled shoes acquire a charge by friction with the floor and could discharge with a spark, possibly causing an explosive burning situation, where the burning is enhanced by the oxygen.4. Electrons are more mobile than protons and are more easily freed from atoms than are protons. 6.No. Object Amight have a charge opposite in sign to that of B, but it also might be neutral. In this latter case, object Bcauses object Ato be polarized, pulling charge of one sign to the near face of Aand pushing an equal amount of charge of the opposite sign to the far face. Then the force of attraction exerted by Bon the induced charge on the near side of Ais slightly larger than the force of repulsion exerted by Bon the induced charge on the far side of A. Therefore, the net force on Ais toward B.
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