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Experiment to find the difference that length and width has on the resistance of a piece of wire
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| Submitted: Thu Jul 11 2002
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The resistance in a wire is caused by the electrons flowing around the circuit bumping into the atoms of the wire, the electrons loose energy and give off heat this is why wire can get hot if electricity is passed through it for a long time. A light bulb works on resistance as the electrons have to pass through a very small piece of wire inside the bulb and they get so hot that they give off heat and light. Factors that will have an effect on the experiment 1. The width of the piece of wire 2. The length of the piece of wire 3. The temperature of the wire 4. What the wire is made of 5. The current passed through the wire Prediction I predict that as the wire gets thinner the will be less resistance and as the wire gets shorter the will be less resistance. This is because there are fewer atoms...
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