A copper wire 2 m long, with a diameter of 3 mm, has a resistance of 0.0012 2 at 20 °C. What will its resistance be at 40°C? The temperature coefficient of copper is 0.0068 °C-¹.
A copper wire 2 m long, with a diameter of 3 mm, has a resistance of 0.0012 2 at 20 °C. What will its resistance be at 40°C? The temperature coefficient of copper is 0.0068 °C-¹.
Electricity for Refrigeration, Heating, and Air Conditioning (MindTap Course List)
10th Edition
ISBN:9781337399128
Author:Russell E. Smith
Publisher:Russell E. Smith
Chapter12: Electronic Control Devices
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Problem 14RQ
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![A copper wire 2 m long, with a diameter of 3 mm, has a resistance of 0.0012 2 at 20 °C. What will its
resistance be at 40°C? The temperature coefficient of copper is 0.0068 °C-¹.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F9a8794ae-ee64-48a9-815b-a1e1ec8eacf6%2F59061d94-c571-4ceb-80bd-09dffcf29a7c%2F4b0kfty_processed.jpeg&w=3840&q=75)
Transcribed Image Text:A copper wire 2 m long, with a diameter of 3 mm, has a resistance of 0.0012 2 at 20 °C. What will its
resistance be at 40°C? The temperature coefficient of copper is 0.0068 °C-¹.
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