A chunk of iron is not usually magnetic, because A. the B fields of the atoms all line up B. the B fields of the atoms are randomly oriented, and cancel out C. its atoms do not have a B field D. electrons cannot move in its atoms

A chunk of iron is not usually magnetic, because A. the B fields of the atoms all line up B. the B fields of the atoms are randomly oriented, and cancel out C. its atoms do not have a B field D. electrons cannot move in its atoms

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 chunk of iron is not
usually magnetic, because
A. the B fields of the atoms all line up
B. the B fields of the atoms are
randomly oriented, and cancel out
C. its atoms do not have a B field
D. electrons cannot move in its atoms

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