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.
Students should already be familiar with
- electromagnetic induction,
Students will not cover
- phased signals,
- alternating current circuits.