The resistance of a copper wire at 20 degrees is 40Ω. The length of an aluminum wire is 6 times the length of the copper wire and its radius is 2 times the radius of the copper wire. If the resistivity of the copper wire is 0.6 times the resistivity of the aluminum wire, calculate the resistance of the aluminum wire at 20 degrees in Ω.

The resistance of a copper wire at 20 degrees is 40Ω. The length of an aluminum wire is 6 times the length of the copper wire and its radius is 2 times the radius of the copper wire. If the resistivity of the copper wire is 0.6 times the resistivity of the aluminum wire, calculate the resistance of the aluminum wire at 20 degrees in Ω.

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter21: Current And Direct Current Circuits

Section: Chapter Questions

Problem 14P

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