Two cities separated by 10,000 ft is connected by telephone wires whose thermal coefficient of resistance at 25oC is 0.003/Co . If the resistance of the wire at 45oC is 612 Ω, what would be its resistance at 25oC?
Two cities separated by 10,000 ft is connected by telephone wires whose thermal coefficient of resistance at 25oC is 0.003/Co . If the resistance of the wire at 45oC is 612 Ω, what would be its resistance at 25oC?
Physics for Scientists and Engineers: Foundations and Connections
1st Edition
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Katz, Debora M.
Chapter28: Current And Resistance
Section: Chapter Questions
Problem 67PQ
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Two cities separated by 10,000 ft is connected by telephone wires whose thermal coefficient of resistance at 25oC is 0.003/Co . If the resistance of the wire at 45oC is 612 Ω, what would be its resistance at 25oC?
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