The Motor Effect

• What is the motor effect?

  Force between a magnet and a conductor
• What does Fleming's left hand rule represent?

  Direction of force in a magnetic field
• What are the three ways to increase the force in the motor effect?

  1. Increase the current
  2. Increase the magnetic field strength
  3. Increase the length of the conductor
• What is a split-ring commutator used for in electric motors?

  To reverse the current direction
• What happens when direct current is passed through a wire in a motor?

  Each side of the coil experiences opposite forces
• What is the result of the opposite forces on the coil in an electric motor?

  The coil rotates
• What is the main topic of P7 in the study material?

  Magnetism and Electromagnetism