Electromagnetic Induction

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  • Created by: Abbie
  • Created on: 27-05-12 11:28

Electromagnetic Induction

Electromagnetic induction - the creation of voltage in a wire which is experiencing a change in magnetic field

Moving a magnet in a coil of wire induces a voltage...

  • You can create an electromagnetic induction by moving a magnet in a coil of wire or moving a conductor in a magnetic field ('cutting' magnetic field lines)
  • Moving the magnet from side to side creates a little blip of current
  • If you move the magnet in the opposite direction, the voltage/current will be reversed too
  • Also if the polarity of the magnet is reversed, the voltage/current will be reversed
  • If you keep moving the magnet backwards and forwards, you produce a voltage that keeps swapping direction…





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