Question

What can you do to reduce this resistance?

1) Increase the temperature
2) Decrease the length of the wire
3) Increase the cross-sectional area of the wire
4) Decrease the resistivity of the wire

Answer 1

To reduce resistance in a wire, you can decrease the length of the wire, increase the cross-sectional area of the wire, and decrease the resistivity of the wire.

Step-by-step explanation:

To reduce resistance in a wire, you can take the following steps:

1. Decrease the length of the wire: Resistance is directly proportional to the length of the wire. By decreasing the length, the resistance decreases as well.
2. Increase the cross-sectional area of the wire: Resistance is inversely proportional to the cross-sectional area of the wire. By increasing the area, the resistance decreases.
3. Decrease the resistivity of the wire: Resistivity is the property of a material to resist the flow of electric current. By using a material with lower resistivity, the resistance can be reduced.