An iron rod becomes magnetic when the magnetic domains point in the same direction its electrons stop moving and point in the same direction positive charges line up on one side and negative charges line up on the other side positive ions gather at one end and negative ions gather at the other end

An iron rod becomes magnetic when the magnetic domains point in the same direction its electrons stop moving and point in the same direction positive charges line up on one side and negative charges line up on the other side positive ions gather at one end and negative ions gather at the other end

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter22: Magnetic Forces And Magnetic Fields

Section: Chapter Questions

Problem 8OQ

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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

An iron rod becomes magnetic when
the magnetic domains point in the same direction
its electrons stop moving and point in the same direction
positive charges line up on one side and negative charges line up on the other side
positive ions gather at one end and negative ions gather at the other end

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