BIKE GENERATORS
Electrical engineers will appreciate this windows simulation of an induction motor AKA squirrel cage motor. It will give you a great idea or picture of how a squirrel cage motor works.
This is a simulation that you can download and run on your Windows computer. You are looking at the end view of a Squirrel cage rotor. This is called a "blocked rotor" because as you can see, it is not spinning. However there is a magnetic field spinning around the rotor that you can control.
The small circles along the edge of the rotor represent the conductors that extend along the length of the rotor to the other end. You may choose to show current and voltage at each of these conductors. Current flow is represented by red and green circles at each conductor. Red is into the screen, and green is out of the screen. Voltage is represented by plus and minus signs.
The sizes of the symbols change as the value of the voltage or current gets bigger and smaller.
CHALLENGE: If this simulation were to show an opposing mmf resultant vector coming from the current induced in the squirrel cage where would that vector appear with respect to the main MMF vector?
If you want to know more about this motor click on this link:
http://www.mech.uwa.edu.au/DANotes/motors/steady/steady.html