An aluminum wire having a cross-sectional area equal to 2.70 x 10-6 m2 carries a current of 3.00 A. The density of aluminum is 2.70 g/cm. Assume each aluminum atom supplies one conduction electron per atom. Find the drift speed of the electrons in the wire.

An aluminum wire having a cross-sectional area equal to 2.70 x 10-6 m2 carries a current of 3.00 A. The density of aluminum is 2.70 g/cm. Assume each aluminum atom supplies one conduction electron per atom. Find the drift speed of the electrons in the wire.

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 7P

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An aluminum wire having a cross-sectional area equal to 2.70 x 10-° m² carries a current of 3.00 A. The density of aluminum is 2.70 g/cm³. Assume each aluminum atom supplies one conduction
electron per atom. Find the drift speed of the electrons in the wire.
The equation for the drift velocity includes the number of charge carriers per volume, which in this case is equal to the number of atoms per volume. How do you calculate that if you know the density
and the atomic weight of aluminum? mm/s

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