Glencoe Physics: Principles and Problems, Student Edition
1st Edition
ISBN:9780078807213
Author:Paul W. Zitzewitz
Publisher:Paul W. Zitzewitz
Chapter24: Magnetic Fields
Section: Chapter Questions
Problem 83A
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![Shown in the figure below is a long hollow wire. The wire has an inner radius of a, an outer radius of b, and is carrying a current of I.
Region I Region II
Region III
(r<a)
(r>b)
(b>r>a)
●
Infinite Hollow Wire carrying Current I
Use Ampere's Law to determine the magnetic field in each of these three regions as a function of r:
Region I (r>b):
Region II (a<r<b):
I
o What is the length of the Ampere path?
o What is the current enclosed by your path?
o What is the magnetic field?
Region III (r<a):
infinite length
In Region II, which way is the magnetic field oriented?
Clockwise as viewed from the left
To the right
O Out of the screen
Counter-Clockwise as viewed from the left
To the Left
To the bottom of the screen
Into the screen
O To the top of the screen](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F093e7116-3e01-49ad-9157-7a22a5caeb16%2Fedf1feeb-b956-4d25-8977-2dafe8d93b9b%2F199slrn_processed.png&w=3840&q=75)
Transcribed Image Text:Shown in the figure below is a long hollow wire. The wire has an inner radius of a, an outer radius of b, and is carrying a current of I.
Region I Region II
Region III
(r<a)
(r>b)
(b>r>a)
●
Infinite Hollow Wire carrying Current I
Use Ampere's Law to determine the magnetic field in each of these three regions as a function of r:
Region I (r>b):
Region II (a<r<b):
I
o What is the length of the Ampere path?
o What is the current enclosed by your path?
o What is the magnetic field?
Region III (r<a):
infinite length
In Region II, which way is the magnetic field oriented?
Clockwise as viewed from the left
To the right
O Out of the screen
Counter-Clockwise as viewed from the left
To the Left
To the bottom of the screen
Into the screen
O To the top of the screen
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