Example results

IB Physics: Example results

First the cross sectional area of the conductor was changed by adding strips between the contacts, the table below shows the resistance and number of strips. The area was calculated by measuring the thickness with a micrometer (0.145 mm) and multiplying by the number of strips and the width of the paper (1 cm). The uncertainty in this value was found by adding the % uncertainty in both width and thickness measurement.

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