A wire has a current density of 7.77 x 10° A/m“. If the cross-sectional area of the wire is 3.57 mm2, what current I does the wire carry? I = 2773.9 Incorrect With this current, how much time t is required for 4.39 x 10-º electrons to pass any point on the wire? t = 0.02532 Incorrect

A wire has a current density of 7.77 x 10° A/m“. If the cross-sectional area of the wire is 3.57 mm2, what current I does the wire carry? I = 2773.9 Incorrect With this current, how much time t is required for 4.39 x 10-º electrons to pass any point on the wire? t = 0.02532 Incorrect

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 17P

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A wire has a current density of 7.77 x 10° A/m“. If the cross-sectional area of the wire is 3.57 mm2, what current I does
the wire carry?
I =
2773.9
Incorrect
With this current, how much time t is required for 4.39 x 1040 electrons to pass any point on the wire?
t =
0.02532
Incorrect

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