Electromagnetism

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  • Created by: HLeiper
  • Created on: 03-04-14 13:45
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  • Electromagnetism
    • Electric current in a conductor produces an electromagnetic field
    • Electric Motor
      • current goes through and the motion goes up
        • Break in the  circuit means that the current switches
          • The motion goes down causing it to turn
      • Increase the number of rotations: Increase Current, Stronger Magnet, Increase coils
      • Change the way of rotation: Change field or current
    • Loudspeakers
      • Magnet with a coil at the back
        • AC - one way goes up and one way goes down
    • Flemmings Left Hand Rule
      • ThuMb = Motion
      • SeCond finger = Current
      • Third Finger = Field

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