A nichrome wire has a resistance of 12.0 Ω at 20 °C

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

Problem

A nichrome wire has a resistance of 12.0 Ω at 20 °C. Its temperature coefficient of resistance is 1.7 × 10^{−4} °C^{−1}. Calculate its resistance at 420 °C.

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