2) What is the magnetic field (magnitude in [T] and direction) at the center of the circular region. You can assume that the two long straight wires are effectively infinite and located 8 [cm] apart, with a current of 20 [A] flowing as indicated by the arrows (this is really a very long wire out-and-back so those two wires are carrying the same current). Hint: for goodness sake don't try to set up an integral here, but try to solve this from the standpoint of different parts contributing different magnetic fields. 90°

2) What is the magnetic field (magnitude in [T] and direction) at the center of the circular region. You can assume that the two long straight wires are effectively infinite and located 8 [cm] apart, with a current of 20 [A] flowing as indicated by the arrows (this is really a very long wire out-and-back so those two wires are carrying the same current). Hint: for goodness sake don't try to set up an integral here, but try to solve this from the standpoint of different parts contributing different magnetic fields. 90°

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter12: Sources Of Magnetic Fields

Section: Chapter Questions

Problem 25P: A long, straight, horizontal wire carries a left-to-right current of 20 A. If the wire is placed in...

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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

2) What is the magnetic field (magnitude in [T] and direction) at the center of the circular
region. You can assume that the two long straight wires are effectively infinite and located 8
[cm] apart, with a current of 20 [A] flowing as
indicated by the arrows (this is really a very long
wire out-and-back so those two wires are carrying
the same current). Hint: for goodness sake don't
try to set up an integral here, but try to solve this
from the standpoint of different parts contributing
different magnetic fields.
90°
|B| =
Direction (circle one) Field points:
Left
Right
Up
Into page
Out of page

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