Objective

Learn the fundamental concepts underlying operation of electric motors.

Assignment

Based on your laboratory experience with magnetic and electromagnetic motors, complete a written lab report with analyses of the following:

  • Compare and contrast the tradeoffs for the two versions of the rotary magnet controller. What are the strengths and weaknesses of each version?
  • What are the strengths and weaknesses of the battery alternator design? How might you improve it?

Lab

  1. Magnetic Motors
    • Use an external bar magnet to rotate a neodymium magnet.
    • Compare two designs for external rotary mechanisms that move a neodymium magnet.
  2. Electromagnetic Motors
    • Use a battery and lead wires to control an electromagnetic motor.
    • Use an external rotary mechanism to control an electromagnetic motor.

Resources