Physics

Physics

Problem

Nichrome has resistivity 1.1×10−6 Ω m1.1\times10^{-6}\,\Omega\,\text{m}. What should be the approximate diameter of a 1 m1\,\text{m} long nichrome wire so that its resistance is 5 Ω5\,\Omega? a) 0.26 mm0.26\,\text{mm} b) 0.79 mm0.79\,\text{mm} c) 0.53 mm0.53\,\text{mm} d) 0.37 mm0.37\,\text{mm}

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