A copper wire has a resistance of 0.565 N at 20.0°C, and an iron wire has a resistance of 0.597 N at the same temperature. At what temperature are their resistances equal? The temperature coefficient of resistivity for copper is 3.90 x 10-3(°C)-1 and for iron it is 5.00 x 10-3(°C)-1. °C

A copper wire has a resistance of 0.565 N at 20.0°C, and an iron wire has a resistance of 0.597 N at the same temperature. At what temperature are their resistances equal? The temperature coefficient of resistivity for copper is 3.90 x 10-3(°C)-1 and for iron it is 5.00 x 10-3(°C)-1. °C

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ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

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Chapter1: Units, Trigonometry. And Vectors

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Concept explainers

Resistivity

Resistivity is a characteristic property of the conductor’s material that measures the extent to which the material opposes the flow of current. It is denoted by the Greek letter “rho”. Electrical resistivity, also known as specific resistance, depends on the nature of the material of the conductor and is unaffected by its dimensions.

Question

A copper wire has a resistance of 0.565 N at 20.0°C, and an iron wire has a
resistance of 0.597 N at the same temperature. At what temperature are
their resistances equal? The temperature coefficient of resistivity for copper
is 3.90 x 10-3(°C)-1 and for iron it is 5.00 x 10-3(°C)-1.
°C

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