GCSE Physics Coursework - Resistance of a Wire Aim: To investigate how the resistance of a wire is affected by the length of the wire. What is resistance? Electricity is conducted through a conductor, in this case wire, by means of free electrons. The number of free electrons depends on the material and more free electrons means a better conductor, i.e. it has less resistance. For example, gold has more free electrons than iron …showed first 75 words of 1008 total…

…showed last 75 words of 1008 total…amp;gt;0.33<Tab/>3.70 90<Tab/>1.26<Tab/>0.30<Tab/>4.20 100<Tab/>1.27<Tab/>0.28<Tab/>4.54 Conclusion Having performed the investigation, the following conclusion was drawn: ·<Tab/>As predicted, an increase in length resulted in an increased resistance. This can be clearly said for both wires tested.