What electric motor is made of
A machine that turns electrical energy into rotation. Moritz von Jacobi built a practical motor.
- Ball bearing — has part. The rotor turns on bearings.
- Electromagnet — has part. A motor’s windings are electromagnets.
- Electromagnetism — uses. Current in the windings creates a magnetic field that turns the rotor.
- Electrical resistance — uses. The resistance of the windings determines the losses in a motor.
- Steel — is made of. The stator and rotor are stacked from sheets of electrical steel.