A rotating magnetic field is a magnetic field which changes direction at (ideally) a constant angular rate. This is a key principle in the operation of the alternating-current motor. Rotating magnetic fields are mainly utilized in electric rotating machinery e.g. electric generators or induction motors and therefore electromechanical applications. However it can also be used in purely electrical applications as e.g. induction regulators.
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Famous quotes containing the words magnetic and/or field:
“We are in great haste to construct a magnetic telegraph from Maine to Texas; but Maine and Texas, it may be, have nothing important to communicate.”
—Henry David Thoreau (1817–1862)
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Breathing the smell of field and grove, attune
The trembling leaves, while universal Pan,
Knit with the Graces and the Hours in dance,
Led on th’ eternal Spring.”
—John Milton (1608–1674)