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Electricity and magnetism

Physics

After this lesson, you should be able to:

  • Use Faraday’s law to explain the induced current in the generator’s coil
  • Use words and pictures to explain the basic principle of an AC generator
  • Distinguish between AC and DC generators in terms of slip rings and commutators
  • Indicate the direction of the force on a current carrying wire in a magnetic field using a right-hand-rule
  • Use words and pictures to explain the basic principle of a DC motor
  • Compare the function and energy transfers between a generator and a motor
  • Give examples of the use of electric motors and generators