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A 14-gauge copper wire has a diameter of 1.508 mm. What magnitude current flows in amperes when the drift velocity is 0.500 mm/s? (The density of free electrons in copper is 8.34 x 1028 e-/m3.).) A

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter10: Direct-current Circuits

Section: Chapter Questions

Problem 63P: (a) During surgery, a current as small as 20.0A applied directly to the heart may cause ventricular...

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Concept explainers

Microscopic view of current

In physics, the term current is expressed as the rate of flow of electric charges across the area per unit time (I=q/t). It propagates along in the direction of the motion of positive charges. When the current is caused by the motion of electrons, the direction of the current is opposite to the flow.

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A 14-gauge copper wire has a diameter of 1.508 mm. What magnitude current flows in amperes when the drift velocity is
0.500 mm/s? (The density of free electrons in copper is 8.34 x 1028 e /m³.).)
A

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