A uniform cylindrical wire long with cross-sectional area is made of a metal whose…

PHYSICS · Subjective · A Level · Physics · Electricity · Electricity

Problem

A uniform cylindrical wire

2.0\,\text{m}

long with cross-sectional area

1.5 \times 10^{-6}\,\text{m}^2

is made of a metal whose resistivity is

1.7 \times 10^{-8}\,\Omega\cdot\text{m}

. If a current of

0.50\,\text{A}

flows through the wire, calculate the magnitude of the potential difference between its ends.

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