Explanation of DC electric machine principle

Exhibit for 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 12V, wood, plastic

Source: 12V

Dimensions: 10 x 60 x 60

21IQ-0077