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Constantan Wire Investigation
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| Submitted: Thu Jul 11 2002
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AIM OF INVESTIGATION: My aim is to find the factors, which affect the resistance of a wire or a conductor. These factors are: (a) material from which wire is made, (b) length of wire, and (c) thickness of wire. I will choose to look at three different materials: Copper, Constantan and Nichrome and find out which one offers more resistance than others. For each material I am going to measure the current and voltage 3 times, a total of nine measurements for the three materials. Replication of measurements this way will make my results more reliable. I shall also investigate the effect of wire length on resistance by varying the length of wire and recording the corresponding current and voltage. This experiment will show me whether the resistance will increase as the length of wire increases. Although wire diameter is the third factor that affects wire resistance, I...
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