A given copper wire has a resistance of 5.20 2 at 20.0°C while a tungsten wire of the same diameter has a resistance of 4.63 Q at 20.0°C. At what temperature will the two wires have the same resistance? °C Need Help? Read It

A given copper wire has a resistance of 5.20 2 at 20.0°C while a tungsten wire of the same diameter has a resistance of 4.63 Q at 20.0°C. At what temperature will the two wires have the same resistance? °C Need Help? Read It

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter21: Current And Direct Current Circuits

Section: Chapter Questions

Problem 9CQ

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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 given copper wire has a resistance of 5.20 Q at 20.0°C while a tungsten wire of the same diameter has a resistance of 4.63 Q at
20.0°C. At what temperature will the two wires have the same resistance?
°C
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