Electric potentials and electric fields1. should you use metallic or plastic coated magnets for the electrodes? why? 2.what would happen to the charges on the surface of a conductor if the electric field was not perpendicular to the surface? 3.why must you "clean: (i. e. polish) the conductors? 4.why must electric field lines always perpendicular to rquipotential lines?

answer:

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explanation:

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the skeletons of most mammals reach a certain size and then stop growing. however, many animals, including some mammals, keep growing throughout their lives. kangaroos, for example, just keep growing and growing until they die. also, the longer an animal lives the greater the chance it might catch some deadly disease.