Physics
Demo Electric Motor
The construction of the multi-functional Demo Electric Motor is completely open.
- Three Copper Wire-Wound Armatures
- Visible Parts
- Removable Bar Magnet Produces a Permanent Magnetic Field
- Phosphor-Bronze Brushes
- Motor Operates on 4.5—9VDC
All parts of the motor are visible, so students can observe their inner workings. A model of a simple DC electric motor, this device has three armatures: two pole, three pole, and four pole, which are wound with enameled copper wire. A removable bar magnet produces a permanent magnetic field.
A disc-type commentator is incorporated, and a pair of 4 mm sockets provides an external connection to the phosphor-bronze brushes. The motor operates on 4.5—9VDC.