A wire of resistivity 2.8 x 10^-8 ohm. m and length 20-m must dissipate electrical energy at a rate less than 3.0- W when a 15-A current flows. Calculate the minimum cross-sectional area of the wire.
A wire of resistivity 2.8 x 10^-8 ohm. m and length 20-m must dissipate electrical energy at a rate less than 3.0- W when a 15-A current flows. Calculate the minimum cross-sectional area of the wire.
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 wire of resistivity 2.8 x 10^-8 ohm. m and length 20-m must dissipate electrical energy at a rate less than 3.0-
W when a 15-A current flows. Calculate the minimum cross-sectional area of the wire.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F4819084b-d54a-43bc-8543-13f6dd498ce6%2Fb919d1dc-0cc6-4a68-8e49-a43381afe7e3%2Fl1pv8yd_processed.jpeg&w=3840&q=75)
Transcribed Image Text:A wire of resistivity 2.8 x 10^-8 ohm. m and length 20-m must dissipate electrical energy at a rate less than 3.0-
W when a 15-A current flows. Calculate the minimum cross-sectional area of the wire.
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