Answered: A current-carrying gold wire has…

A current-carrying gold wire has diameter 6.89 mm. The electric field in the wire is 9.24 V/m. What is the current carried by the wire in kA? Note that the resistivity of gold is p=2.44x10-8 m

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 15P: If the current carried by a conductor is doubled, what happens to (a) the charge carrier density,...

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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.

Question

A current-carrying gold wire has diameter 6.89 mm. The electric field in the wire is 9.24 V/m. What is the current carried by the wire in kA? Note
that the resistivity of gold is p = 2.44x10-8 m

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