Why rubbers and plastics are used to cover the electric wires?
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Explanation:
Most electrical wire is covered in a rubber or plastic coating called insulation. ... The purpose of insulation covering the metal part of an electrical wire is to prevent accidental contact with other conductors of electricity, which might result in an unintentional electric current through those other conductors.
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Answer:
because they do not conduct electricity as well as metals and therefore you don't receive a jolt
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