A. Three very long current-carrying wires are arranged as shown in the figure. What is the force perunit length experienced by the wire at the bottom?Inetа.= zero24( )b.Fnet-21LπιFnet(+ j)с.4nlFnetd. =(- )%3|4TlB. A very long cable made of a solid inner cylinder and a coaxial,cylindrical, outer shell with finite thickness. The inner cylinderO 31carries a current I while the outer shell carries a current 21 in theopposite direction (see figure). What is the magnitude of themagnetic field at b < r < c?610312urа.2 +H312b.2nr1 + 2 )С.2nr(-B)H,311 – 2-b)]d.2ur

Answered: Image /qna-images/answer/72952df4-223c-4188-8685-65787c9219c0.jpg

A. Three very long current-carrying wires are arranged as shown in the figure. What is the force per unit length experienced by the wire at the bottom? a. = zero -21 b. %3D 34 (+ j) с. 4nl 30 (-) d. 4nl

A. Three very long current-carrying wires are arranged as shown in the figure. What is the force per unit length experienced by the wire at the bottom? a. = zero -21 b. %3D 34 (+ j) с. 4nl 30 (-) d. 4nl

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter12: Sources Of Magnetic Fields

Section: Chapter Questions

Problem 80AP: The current density in the long, cylindrical wire shown in the accompanying figure varies with...

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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

100%

A. Three very long current-carrying wires are arranged as shown in the figure. What is the force per
unit length experienced by the wire at the bottom?
I
net
а.
= zero
24
( )
b.
F
net
-21
L
πι
F
net
(+ j)
с.
4nl
F
net
d. =(- )
%3|
4Tl
B. A very long cable made of a solid inner cylinder and a coaxial,
cylindrical, outer shell with finite thickness. The inner cylinder
O 31
carries a current I while the outer shell carries a current 21 in the
opposite direction (see figure). What is the magnitude of the
magnetic field at b < r < c?
61
031
2ur
а.
2 +
H31
2
b.
2nr
1 + 2 )
С.
2nr
(-B)
H,31
1 – 2-b)]
d.
2ur

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