A copper wire is 0.80 m long and has a circular cross-section with diameter 1.2 mm

PHYSICS · Subjective · CBSE · Physics · Electricity · Electricity

Problem

A copper wire is 0.80 m long and has a circular cross-section with diameter 1.2 mm. The resistivity of copper at room temperature is

1.7\times10^{-8}\,\Omega\,\text{m}

. Calculate the electrical resistance of the wire at room temperature.

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