Magnetic fields

  • S. M. Geddes


The concept of a magnetic field is a familiar one, being originally described as the region around a bar magnet in which its influence can be felt. Since the basis of magnetism is now considered to be the movement of electrons in their orbits about the nucleus (Chap. 7), the modern approach to the subject is via electromagnetism, and a magnetic field is now defined in terms of the force which it exerts on a current-carrying conductor.


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© S. M. Geddes 1981

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  • S. M. Geddes

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