An aluminum wire 7.5m long is connected in parallel with a copper wire 6m long. When a current of 5A is passed through the combination, it is found that the current in the aluminum wire is 3A. If the diameter of the aluminum wire is 1mm, determine the diameter of the copper wire. Assume the resistivity of copper to be 0.017µΩm and that of aluminum to be 0.028 µΩm. Major Topic 7 Factors that affect the resistance
An aluminum wire 7.5m long is connected in parallel with a copper wire 6m long. When a current of 5A is passed through the combination, it is found that the current in the aluminum wire is 3A. If the diameter of the aluminum wire is 1mm, determine the diameter of the copper wire. Assume the resistivity of copper to be 0.017µΩm and that of aluminum to be 0.028 µΩm. Major Topic 7 Factors that affect the resistance
Delmar's Standard Textbook Of Electricity
7th Edition
ISBN:9781337900348
Author:Stephen L. Herman
Publisher:Stephen L. Herman
Chapter1: Atomic Structure
Section: Chapter Questions
Problem 6RQ: How many valence electrons are generally contained in materials used for insulators?
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Question
An aluminum wire 7.5m long is connected in parallel with a copper wire 6m
long. When a current of 5A is passed through the combination, it is found that
the current in the aluminum wire is 3A. If the diameter of the aluminum wire is
1mm, determine the diameter of the copper wire. Assume the resistivity of
copper to be 0.017µΩm and that of aluminum to be 0.028 µΩm.
Major Topic 7
Factors that affect the resistance
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