DC Motors Video

Twist Your Armature

A Brush with the Laws of Electromagnetism

Watch physicists Becky Thompson-Flagg and Ted Hodapp trade quips as they show how to take apart a small DC motor and find out how it works. They get the armature of the motor spinning with just a battery, a few wires, and a permanent magnet. The experiment in this video is the same one described in the DC Motor Annotated Activity Handout.

Gray arrow  DC Motor Annotated Handout Format - PDF