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Changes
→Improving Precision
: Ensure the wire is straight along the ruler to reduce the [[Random Error]] caused by inconsistencies in the length of the ruler.
: Use pointed contacts to connect to the wire to reduce the uncertainty of the length due to thick/wide contacts during repeat readings.
: Ensure a low [[Electrical Current|current]] throughout to reduce the [[heating]] effect of the [[Electrical Current|current]] on the [[wire]]. This improves [[precision]] when done over repeat readings because [[Electrical Resistance|resistance]] is affected by the [[temperature]] of the [[wire]] reducing the range of possible results for the same length or [[wire]].
===Experiment 1b: Resistance and Length of a Wire===