Electricity and Magnetism > Magnetic Materials >
Ferromagnetism
|
DCS# 5G50.20 |
CURIE TEMPERATURE
MOTOR
-
APPARATUS
curie temperature motor
|
202-20-E |
power supply
|
202-08-D |
video camera
|
202-09-D |
DESCRIPTION
The wheel
has a ferromagnetic rim that
passes between the poles of a horseshoe magnet. A
current-carrying wire
heats the rim near the magnet. When that part of the rim reaches
its
Curie temperature and is no longer ferromagnetic, the neighboring
cooler part of the rim is drawn into the magnet gap. This process
continues, turning the wheel.
- NOTES
- The
original heating element has been replaced, so the labeled
voltage no longer applies. Set the current to about 5 A.
REFERENCE
Sutton E-110.