Generator effect

• Generator effect (electromagnetic induction)

  A magnetic field induces a current in a wire
• 3 ways to increase potential difference generated

  Increase the magnetic field strength by using stronger magnets

  Move the wire or magnets faster

  Add more turns to the coil
• What can be said about the direction of the magnetic field produced by an induced current


  Direction of the field is such that it opposes the change that induced the current