An aluminum wire 7.5 meters long is connected in a parallel with a copper wire 6 meters long. When a current of 5 amperes is passed through the combination, it is found that the current in the aluminum wire is 3 amperes. The diameter of the aluminum wire is 1 millimeter. Determine the diameter of the copper wire. Resistivity of copper is 0.017 micro-ohm - meter; that of the aluminum is 0.028 micro-ohm - meter.
An aluminum wire 7.5 meters long is connected in a parallel with a copper wire 6 meters long. When a current of 5 amperes is passed through the combination, it is found that the current in the aluminum wire is 3 amperes. The diameter of the aluminum wire is 1 millimeter. Determine the diameter of the copper wire. Resistivity of copper is 0.017 micro-ohm - meter; that of the aluminum is 0.028 micro-ohm - meter.
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
Section: Chapter Questions
Problem 14RQ
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