Perform an investigation to demonstrate the principle of an AC induction motor

Motors and Generators > 5. Using Motors >

Perform an investigation to demonstrate the principle of an AC induction motor

  • Use aluminium foil on water with a spinning magnet above
  • This produces an eddy current in the foil (Lenz’s law)
  • In turn, this creates an opposing magnetic field and causes the foil to spin
  • A magnet in front of a hanging aluminium plate can also be used to show motion.