Don't provide handwritten solution Ampere's Lawε B.B. ds = μoiencCross-section of along coaxialcable.The current 7i flows uniformly inout of page direction for r

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The current 7i flows uniformly in out of page direction for r

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter9: Current And Resistance

Section: Chapter Questions

Problem 81CP: A 10-gauge copper wire has a cross-sectional area A=5.26mm2 and carries a current of I=5.00A . The...

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Concept explainers

Ferromagnetism

Ferromagnetism is a mechanism by which some materials show magnetic properties. Iron and magnetite, an oxide of iron, are two naturally occurring materials that show the property of ferromagnetism. The word ferromagnetism is derived from the Latin name of iron, "Ferrum" as it was the first observed material to show such property. The property of ferromagnetism is shown by only a few substances such as iron, nickel, cobalt, and their alloys. Some transition metals and alloys of rare-earth metals also show ferromagnetism.

Question

Don't provide handwritten solution

Ampere's Law
ε B.
B. ds = μoienc
Cross-section of a
long coaxial
cable.
The current 7i flows uniformly in
out of page direction for r<c,
while the equal and opposite current
flows uniformly for b<r<a.
Find the magnetic field in the
following regions:
r<c
c<r<b
b<r<a
a<r

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Step 3: Calculation of the field for c<r<b

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Step 4: Calculation of the field b<r<a

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Step 5: Calculation of the field for r>a

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A 10-gauge copper wire has a cross-sectional area A=5.26mm2 and carries a current of I=5.00A . The adensity of copper is =89.50g/cm2 . One mole ofcopper atoms (6.021023atoms) has a mass ofapproximately 63.50 g. What is the magnitude of the drift velocity of the elections, assuming that each copper atom contributes one free electron to the current?