B5 practical: Factors affecting R (nichrome) example results
Whilst taking these measurements it was noticed that the values did not seem to be consistent, making the crocodile clips stay on the thin wires was problematic leading to a large uncertainty in the values. The results are included here but they"re not reliable.Looking at this data we can see that the resistance of the 0.26 mm wire is the same as the 0.30 mm, this should not be the case, a graph of R vs 1/A was plotted...