4. A thin toroid of permanently magnetized material has a uniform magnetic dipole moment (per unit volume) of strength M and oriented parallel to the center of this toroid, as shown in the figure. (a) Find the direction and magnitude of B and H at point inside the toroid. M

4. A thin toroid of permanently magnetized material has a uniform magnetic dipole moment (per unit volume) of strength M and oriented parallel to the center of this toroid, as shown in the figure. (a) Find the direction and magnitude of B and H at point inside the toroid. M

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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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

Solve only part a..

4. A thin toroid of permanently magnetized material has a uniform magnetic dipole moment (per unit
volume) of strength M and oriented parallel to the center of this toroid, as shown in the figure.
(a) Find the direction and magnitude of B and H
at point
inside the toroid.
(b) A narrow gap of length / is cut in the material (the material between
the dashed lines in the figure is removed).
Find B and H at point and at point in the gap.
(2)
M
off
R
M
-1

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