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Find out how the length of a wire affects its resistance.
Member rating: No Rating | Words: | Submitted: Wed Sep 29 2004
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Resistance Aim: the aim for this course work is to find out how a length of a wire affects its resistance Variables: the factors that can affect the resistance of a wire are..... * Length of the wire * Temperature of the wire * Diameter and thickness of the wire * Material of the wire Out of all these factors I'm only going to test the length of a wire using constantan wire and I will compare the length of the wire and its resistance Prediction: I predict that, the longer the length of the wire, the higher its resistance. My reason for saying this is because resistance is caused in metals by free electrons bumping into ions, and for this reason they slow down in the wire. There fore more energy is lost in these collisions as heat. If the length of the wire is doubled so will the electrons that era...
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