The current density in a cylindrical wire of radius R is given by J =Jo(1 -2). Density is parallel to the axis. Find the total current passingR2.through the section perpendicular to the axis.a) I =JOR²b) I = -4TJ,R?c) I =d) I = -1127JR?n],R?632575e) I =

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The current density in a cylindrical wire of radius R is given by J = Jo(1-). Density is parallel to the axis. Find the total current passing through the section perpendicular to the axis. a) I = "J,R2 b) I = -4nJ,R? c) I = -n],R² d) I = -112nJR² 63 2 575 e) I = - R?

The current density in a cylindrical wire of radius R is given by J = Jo(1-). Density is parallel to the axis. Find the total current passing through the section perpendicular to the axis. a) I = "J,R2 b) I = -4nJ,R? c) I = -n],R² d) I = -112nJR² 63 2 575 e) I = - R?

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter9: Current And Resistance

Section: Chapter Questions

Problem 86CP: Consider a square rod of material with sides of length L = 3.00 cm with a current density of...

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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

The current density in a cylindrical wire of radius R is given by J =
Jo(1 -2). Density is parallel to the axis. Find the total current passing
R2.
through the section perpendicular to the axis.
a) I =JOR²
b) I = -4TJ,R?
c) I =
d) I = -1127JR?
n],R?
63
2
575
e) I =

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