Lesson Plan: Current Rectification Physics
This lesson plan includes the objectives, prerequisites, and exclusions of the lesson teaching students how to describe the use of a commutator in converting the output of an alternating current generator into a direct current.
Objectives
Students will be able to
- describe how the connections of the ends of a uniformly rotating conducting coil must connect to commutator rings to produce induced current in an external circuit that varies in magnitude but not in direction,
- compare the changes in orientation of a uniformly rotating conducting coil, with terminals connected to commutator rings, to graphs of change of induced current in an external circuit with time.
Prerequisites
Students should already be familiar with
- electromagnetic induction of alternating current,
- alternating current generators.
Exclusions
Students will not cover
- calculations of current.