![](https://www.sciencemodels.info/499-large_default/dc-electric-machine-principle.jpg)
Model for the explanation of DC electric machine principle.
Two DC machines - dynamo and electromotor mounted on the base. Dynamo is put into motion by hand crank and electromotor by electric source.
Material: dynamo, electric motor, light bulb 12 V, wood, plastic
Power supply: 12 V
Dimensions (cm): 10 x 60 x 60