. A very long cable made of a solid inner cylinder and a coaxial, cylindrical, outer shell with finite thickness. The inner cylinder carries a current 6I while the outer shell carries a current 31 in the opposite direction (see figure). What is the magnitude of the magnetic field at b

. A very long cable made of a solid inner cylinder and a coaxial, cylindrical, outer shell with finite thickness. The inner cylinder carries a current 6I while the outer shell carries a current 31 in the opposite direction (see figure). What is the magnitude of the magnetic field at b

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter12: Sources Of Magnetic Fields

Section: Chapter Questions

Problem 45P: A long, straight wire of radius R caries a current I that is distributed uniformly over the...

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Concept explainers

Magnetic Field Of Coaxial Cable

The word coaxial means same axis. So for a long straight cable to be coaxial, it must have concentric cylindrical shaped conductor around it. Coaxial cable (popularly called ‘coax’) has various applications ranging from current conductors to radiofrequency signal transmitters. This cable has lower emission losses and provides protection from electromagnetic interference which allows signals with less power to transmit over longer distances.For example, currents produced in the pickup of a stereo turntable generally travel to the amplifier through a coaxial cable.The self-inductance of a coaxial cable is another important characteristic, because it influences the propagation of electrical signals in the cable.

Question

Kindly show all work. Choices are shown at the bottom part.

A very long cable made of a solid inner cylinder and a coaxial, cylindrical, outer shell with finite thickness. The
inner cylinder carries a current 6I while the outer shell carries a current 31 in the opposite direction (see figure). What is the magnitude
of the magnetic field at b <r<c?
Ο 31
)
61
A. μο3Ι
2πη
Β. μο3Ι
2πη
c. μο3Ι
2πη
D. μο3I
2πη
α
-2 +
2
|-₁
(n2 – b2)
(c2 – b2)
]
(n2 – 62)
(c2 – b2)
[]
(n2 – b2)
(c2 – b2)
1+2
1 – 2
(n2 – b2)
(c2 – b2)

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