. 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 3I 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 3I in the opposite direction (see figure). What is the magnitude of the magnetic field at b

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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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

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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