Answered: Doubling the radius of a circular…

Doubling the radius of a circular current-carrying wire, the magnetic field at the center of the loop will a.) be doubled b.) be halved c.) remain the same d.) be reduced by a factor of 1/4

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter16: Electromagnetic Waves

Section: Chapter Questions

Problem 7CQ: Under what conditions might wires in a circuit wher the current flows in only one direction emit...

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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

Doubling the radius of a circular current-carrying wire, the
magnetic field at the center of the loop will
a.) be doubled
b.) be halved
c.) remain the same
d.) be reduced by a factor of 1/4

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