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An aluminium wire 6.6 m long is connected in parallel with a copper wire 5 m long. When a current of 7 A is passed through the combination, it is found that current in the aluminium wire is 3 A. The diameter of aluminium wire is 1 mm. Determine the diameter of copper wire. Resistivity of copper is 0.017Qm and that of aluminium is 0.028 am.

An aluminium wire 6.6 m long is connected in parallel with a copper wire 5 m long. When a current of 7 A is passed through the combination, it is found that current in the aluminium wire is 3 A. The diameter of aluminium wire is 1 mm. Determine the diameter of copper wire. Resistivity of copper is 0.017Qm and that of aluminium is 0.028 am.

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
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An aluminium wire 6.6 m long is connected in parallel with a copper wire 5 m long. When a current of 7 A is passed through the combination, it is found that current in the aluminium wire is 3 A. The diameter of aluminium wire is 1 mm. Determine the diameter of copper wire. Resistivity of copper is 0.017Qm and that of aluminium is 0.028 Qm.
Transcribed Image Text:An aluminium wire 6.6 m long is connected in parallel with a copper wire 5 m long. When a current of 7 A is passed through the combination, it is found that current in the aluminium wire is 3 A. The diameter of aluminium wire is 1 mm. Determine the diameter of copper wire. Resistivity of copper is 0.017Qm and that of aluminium is 0.028 Qm.
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