If we plot a graph to show how resistance varies with length, we should find:
The graph passes through the origin (where l=0 so R=0) which makes sense. However much we increase the length (e.g. 3×) the resistance will increase by the same amount.
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If we plot a graph to show how resistance varies with length, we should find:
The graph passes through the origin (where l=0 so R=0) which makes sense. However much we increase the length (e.g. 3×) the resistance will increase by the same amount.
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