A copper wire has a resistance of 0.405 Ω at 20.0°C, and an iron wire has a resistance of 0.433 Ω at the same temperatur

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answerhappygod
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A copper wire has a resistance of 0.405 Ω at 20.0°C, and an iron wire has a resistance of 0.433 Ω at the same temperatur

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A copper wire has a resistance of 0.405 Ω at20.0°C, and an iron wire has a resistanceof 0.433 Ω at the same temperature. At whattemperature are their resistances equal? The temperaturecoefficient of resistivity for copper is 3.90 10-3(°C)−1 andfor iron it is 5.00 10-3(°C)−1.
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