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Explore how the resistance of a wire changes when we alter values affecting the resistance.
Member rating: No Rating | Words: | Submitted: Mon Jan 26 2004
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Resistance Wire Investigation Planning In this investigation, I plan to explore how the resistance of a wire changes when we alter values affecting the resistance. These values can be one of the following: * Power - I am to use the same current and voltage across the battery all the time - 3V * Cross-sectional area (thickness) - This will be kept constant, as a change causes a big change in resistivity. I will use a micrometer screw gauge at certain intervals along the wire. The wire size is 30swg * Heat - Again, this affects resistance, so I will try to keep heat constant * Density / Wire type - I will use constantan wire. I am not going to change either of these variables, as I do not have the resources available to me. I am to carry out the investigation considering the length of the resistance wire. This wire will be made out of...
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