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QUESTION
A copper wire has a resistance of 0.455 at 20.0C, and an iron wire has a resistance of 0.492 at the same temperature. At what temperature are their
A copper wire has a resistance of 0.455 Ω at 20.0°C, and an iron wire has a resistance of 0.492 Ω at the same temperature. At what temperature are their resistances equal? The temperature coefficient of resistivity for copper is 3.9010-3(°C)−1and for iron it is 5.0010-3(°C)−1.
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