Consider two circular loops with radius R carrying current I flowing counterclockwise when viewed from the +y axis, as shown. The loops are perpendicular to their common axis and are a distance 2d apart. What is the net magnetic field at point P, located midway between the two loops?

Consider two circular loops with radius R carrying current I flowing counterclockwise when viewed from the +y axis, as shown. The loops are perpendicular to their common axis and are a distance 2d apart. What is the net magnetic field at point P, located midway between the two loops?

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter12: Sources Of Magnetic Fields

Section: Chapter Questions

Problem 39P: Two flat, circular coils, each with a radius R and wound with JV turns, ace mounted along the same...

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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

Consider two circular loops with radius R carrying current I flowing counterclockwise when viewed from the +y axis, as shown. The loops are
perpendicular to their common axis and are a distance 2d apart. What is the net magnetic field at point P, located midway between the two loops?
y
0:0
O A. 0
Ο Β. μοι R²
O C.
O D.
2 (R²+d²)³/2
R²
HoI.
(R² +d²)³/2
R²
kod
(R² + d²)3/2
-Ĵ

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