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Question
Plastic insulation surrounds a wire having diameter d and length l as shown above. A decrease in the resistance of the wire would be produced by an increase in the ______.
Options
length l of the wire
diameter d of the wire
temperature of the wire
thickness of the plastic insulation
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Solution
Plastic insulation surrounds a wire having diameter d and length l as shown above. A decrease in the resistance of the wire would be produced by an increase in the diameter d of the wire.
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