Physics

Problem

A nichrome wire

50\,\text{cm}

long and

0.50\,\text{mm}

in diameter has a resistance of

2.0\,\Omega

. Calculate the resistivity of nichrome. a)

3.1\times 10^{-6}\,\Omega\,\text{m}

7.9\times 10^{-6}\,\Omega\,\text{m}

7.9\times 10^{-7}\,\Omega\,\text{m}

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