Lesson: Electromagnetic Induction in Generators Physics • Third Year of Secondary School

Students will be able to

• identify the components of a slip ring generator,
• identify the components of a commutator generator,
• relate diagrams that show the motion of a slip ring or commutator generator to graphs of the potential difference produced by the generator against time,
• recognize that if the coil of a generator has more loops, the peak potential difference produced by the generator will be greater,
• distinguish between the graphs of potential difference against time for a slip ring generator and a commutator generator,
• recognize that the brushes of a slip ring generator and commutator generator will degrade over time and that a better design of generator is to move the permanent magnet, rather than the coil,
• recognize that slip ring generators produce alternating current,
• recognize that commutator generators produce rectified alternating current.