An aluminum wire 7.5 m long is connected in parallel with a copper wire 6 m long. When a current of 5 A is passed through the combination it is found that the current in aluminum wire is 3 A. The diameter of aluminum wire is 1 mm. Determine the diameter of the copper wire. Resistivity of copper is 1.7 x 10 “ ohm-cm and that of aluminum is 1.724 micro-ohm-cm.

An aluminum wire 7.5 m long is connected in parallel with a copper wire 6 m long. When a current of 5 A is passed through the combination it is found that the current in aluminum wire is 3 A. The diameter of aluminum wire is 1 mm. Determine the diameter of the copper wire. Resistivity of copper is 1.7 x 10 “ ohm-cm and that of aluminum is 1.724 micro-ohm-cm.

Delmar's Standard Textbook Of Electricity

7th Edition

ISBN:9781337900348

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter7: Parallel Circuits

Section: Chapter Questions

Problem 4PP: Using the rules for parallel circuits and Ohmslaw, solve for the missing values....

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