INVESTIGATING IF THE LENGTH OF A METAL WIRE AFFECTS ITS RESISTANCE interpretation THE RESULTS: REACHING A CONCLUSION As the continuance of the metallic element wire increased the metro increased. This is shown in the graph of resistance against space of a metal wire. The resistance is without delay residualal to the duration because it is a straight furrow graph through the origin. The numerical formula for direct proportion can verify this. R= resistancek= a constantL=length R ? L R=kL |Length (cm) |Resistance () |k (?/cm) | |20 |0.70 |0.035 | |30 |1.15 |0.038 | |40 |1.42 |0.036 | |50 |1.80 |0.036 | |60 |2.18 |0.036 | |70 |2.48 |0.
035 | |80 |2.84 |0.036 | |90 |3.22 |0.036 | residue between kH - kL = ?k = 0.038 0.035 = 0.003 theatrical role difference = (?k/ kL) x speed of light = (0.003/0.035) x 100 = 8.57% This calculation shows in that celebrate is only 8.57% difference in the maximum and minimum mensurate of k. The constant set is very similar this verifies that the parity between the independent mismatched (the length of the wire) and the dependent versatile (the resistance of the wire) is straight off proportional. examine CONCLUSION TO PREDICTION AND EXPLAINING IT My soothsaying was that as the length of the metal wire increased, its resistance would in any event increase. I also predicted that the resistance of the wire would be directly proportion to its length. During the experiment we...If you regard to get a ethical essay, order it on our website: Ordercustompaper.com
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