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Electricity Science Fair Project

Temperature and Resistance

Hard
Temperature and Resistance | Science Fair Projects | STEM Projects
Temperature affects the resistance of a wire, which in turn affects the flow of electricity. By measuring the current and resistance of a wire, we can observe how the resistance changes as the temperature increases.

Hypothesis

The hypothesis is that when the temperature of a wire increases, the resistance value of the wire will also increase and therefore the conductivity of the wire will reduce.

Method & Materials

You will wind a wire around a PVC pipe, measure the resistance of the wire, connect the wire to a battery, measure the current, and measure the temperature of the wire as it increases.
You will need a varnish insulated copper wire, a PVC pipe, three 1.5V batteries, jumper wires, an ohm meter, an ammeter, a paper knife, an infrared thermometer, and insulation tape.

Results

The experiment showed that as the temperature of the wire increases, the resistance of the wire also increases but the current flowing in the wire reduces. This confirms the hypothesis that when the temperature of a wire increases, the resistance value of the wire will also increase and the conductivity of the wire will reduce.

Why do this project?

This science project is interesting because it shows how temperature affects the resistance of a wire and how it affects the flow of electricity.

Also Consider

Variations of this experiment could include repeating the experiment using different wire sizes or using aluminum wires.

Full project details

You can find additional information and details for this science fair project here. Have fun exploring!

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