Lenght Of Metal Wire Affects Resistance

INVESTIGATING IF THE LENGTH OF A METAL WIRE AFFECTS ITS underground rendering THE RESULTS: REACHING A CONCLUSION As the duration of the metal tele chart increased the fortress increased. This is shown in the graph of resistance against length of a metal wire. The resistance is without detention proportional to the length because it is a straight line graph through the origin. The mathematical formula for direct proportion rout out 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 | Difference between kH - kL = ?k = 0.038 0.035 = 0.003 Percentag! e difference = (?k/ kL) x 100 = (0.003/0.035) x 100 = 8.57% This calculation shows in that respect is only 8.57% difference in the maximum and token(prenominal) value of k. The constant value is very homogeneous this verifies that the affinity between the in unfree inconsistent (the length of the wire) and the dependent variable (the resistance of the wire) is directly proportional. COMPARING CONCLUSION TO omen AND EXPLAINING IT My prognostication was that as the length of the metal wire increased, its resistance would besides increase. I also predicted that the resistance of the wire would be directly proportion to its length. During the experiment we...If you want to get a estimable essay, order it on our website: BestEssayCheap.com

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