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

Answer 1

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.