A nichrome wire of length 0.80 m has a square cross-section 0.50 mm on each side

PHYSICS · Subjective · CBSE · Physics · Electricity · Electricity

Problem

A nichrome wire of length 0.80 m has a square cross-section 0.50 mm on each side. The resistivity of nichrome is

1.1\times10^{-6}\,\Omega\!\cdot\!\text{m}

. Determine the potential difference that must be applied across the wire to establish a current of 2.0 A.

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