3. A certain copper wire has a resistance of 25 ohms at 10°C. Take the temperature coefficient at 10°C to be 0.00409 deg/C. What must be the maximum operating temperature of the wire if its resistance is to increase by at most 20%?
3. A certain copper wire has a resistance of 25 ohms at 10°C. Take the temperature coefficient at 10°C to be 0.00409 deg/C. What must be the maximum operating temperature of the wire if its resistance is to increase by at most 20%?
Materials Science And Engineering Properties
1st Edition
ISBN:9781111988609
Author:Charles Gilmore
Publisher:Charles Gilmore
Chapter4: Temperature Effects On Atom Arrangements And Atom Motion
Section: Chapter Questions
Problem 4.2P
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![3. A certain copper wire has a resistance of 25 ohms at 10°C.
Take the temperature coefficient at 10°C to be 0.00409
deg/C. What must be the maximum operating temperature
of the wire if its resistance is to increase by at most 20%?](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fef8cd02e-2355-4cf8-9ccf-37e1a7921a36%2F6e076455-d3b0-4947-bc18-a17fc0fe4cc4%2Fmfv473d_processed.jpeg&w=3840&q=75)
Transcribed Image Text:3. A certain copper wire has a resistance of 25 ohms at 10°C.
Take the temperature coefficient at 10°C to be 0.00409
deg/C. What must be the maximum operating temperature
of the wire if its resistance is to increase by at most 20%?
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