A toroidal coil whose vertical cross-section is in the form of a rectangle, its height is 3 cm, its inner radius is 18 cm and its outer radius is 22 cm, and the number of its turns is 2000, through which an electric current of 4 Amp passes. The magnetic flux density B at a point 20 cm from the center of the coil is:

A toroidal coil whose vertical cross-section is in the form of a rectangle, its height is 3 cm, its inner radius is 18 cm and its outer radius is 22 cm, and the number of its turns is 2000, through which an electric current of 4 Amp passes. The magnetic flux density B at a point 20 cm from the center of the coil is:

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

A toroidal coil whose vertical cross-section is
in the form of a rectangle, its height is 3 cm,
its inner radius is 18 cm and its outer radius
is 22 cm, and the number of its turns is 2000,
through which an electric current of 4 Amp
passes. The magnetic flux density B at a point
20 cm from the center of the coil is:

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