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Factors Effecting The resistance of a wire
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For this project I want to investigate the factors affecting the resistance of a metal wire. Factors that effect the resistance of a wire are: Length Diameter Cross-sectional area worked out from this. Material used Temperature Of the above variables, I will be varying the length of the Nichrome wire, and also, I will be varying the cross-sectional area of the wire. The temperature, and the material used for the wire will remain constant in every experiment. In the experiment for cross-sectional area, the length will remain at a constant and in the experiment...
we cannot stick a thermometer in it. Because of this, I would probably vary the material used. If this experiment also yielded results that backed up my results, e.g. the length of a different material used is twice as resistant as a piece of wire half it's length. I would also vary the cross-sectional area of the wire used keeping everything else constant to back up my second hypothesis. A title for this experiment could be:

"Does material used effect the hypotheses; 'is resistance is proportional to length?' or 'Is resistance inversely proportional to cross-sectional area?'"

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