14.What is the diameter that a copper wire must have if its resistance is to be the same as an aluminum wirethat has the same length as the copper wire but its diameter is 2.14 mm.The resistivity of copper = 1.72 x 10-8 Ohm-metersThe resistivity of copper = 2.75 x 10-8 Ohm-meters

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Answered: 14. What is the diameter that a copper…

College Physics

10th Edition

ISBN:9781285737027

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter17: Current And Resistance

Section: Chapter Questions

Problem 21P

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14. What is the diameter that a copper wire must have if its resistance is to be the same as an aluminum wire that has the same length as the copper wire but its diameter is 2.14 mm. The resistivity of copper = 1.72 x 10-8 Ohm-meters The resistivity of copper = 2.75 x 10-8 Ohm-meters