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Awire of resistivity ? must be replaced in a circuit by a wire of the same material but 4 times as long. if, however, the resistance of the new wire is to be the same as the resistance of the original wire, the diameter of the new wire must beanswer4 times the diameter of the original wire.1/2 the diameter of the original wire.1/4 the diameter of the original wire. the same as the diameter of the original wire.2 times the diameter of the original wire.
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Awire of resistivity ? must be replaced in a circuit by a wire of the same material but 4 times as...
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