Plot a graph showing the variation of resistance of a conducting wire – InterviewSolution

InterviewSolution

1.

Plot a graph showing the variation of resistance of a conducting wire as a function of its radius, keeping the length of the wire and its temperature as constant.

Answer»

Resistance of a conductor of length l, and radius r is given by

\(R=p\frac{l}{\pi r^2};\)

thus \(R=\infty\,\frac{1}{r^2}\)

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