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What is a short electromagnetism primer?

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asked Mar 13 by adeoba Grandmaster (9,390 points)
retagged Jun 2 by adeoba
What is the principle behind generators, electric motors, etc...?

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answered Mar 13 by adeoba Grandmaster (9,390 points)

The way i used to remember it way back is, there are basically four components involved: M,C,M,C (motion, conductors, magnets, current). Basically, the presence of any three would bring  about the fourth. For example, the principle behind a generator is: "a moving (1) conductor (2) in a magnetic field (3) would generate current (4)"; and the principle behind the electric motor is: "a current-carrying (1) conductor (2) in a magnetic field (3) would move (4)". Smart?

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