(A) If the current-carrying wire is made into a loop of radius 6.70 cm with 3.146 A current flowing through it, what would be the magnetic strength at the center of the loop? (B) If the radius is doubled, what happens to the magnetic field at the same point?

(A) If the current-carrying wire is made into a loop of radius 6.70 cm with 3.146 A current flowing through it, what would be the magnetic strength at the center of the loop? (B) If the radius is doubled, what happens to the magnetic field at the same point?

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter12: Sources Of Magnetic Fields

Section: Chapter Questions

Problem 48P: A portion of a long, cylindrical coaxial cable is shown in the accompanying figure. A current I...

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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.

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(A) If the current-carrying wire is made into a loop of radius 6.70 cm with 3.146 A current
flowing through it, what would be the magnetic strength at the center of the loop? (B) If the
radius is doubled, what happens to the magnetic field at the same point?

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