Electric Motors

Electric Motors

Electric motors is the application of the motor effect.

A coil of wire carrying a current in a magnetic field tends to rotate.

See the following slides below:

Electric Motors, figure 1

Electric Motors, figure 2

Electric Motors, figure 3

Electric Motors, figure 4

Electric Motors, figure 5

If asked how an electric motor works, ensure you can write the above bullet points.

To increase the strength of an electric motor you need to:

  1. Increase the size of the magnets
  2. Increase the size of the current
  3. Increase the amount of wire inside the magnetic field