Van de Graaff Generator. 8. 9. 6. 5. 4. Schematic view. 7 . 3. 2. 1. A Van de Graaff generator is made by a belt of a flexible dielectric material, running over two rollers (wheels), one of which is surrounded by a hollow metal ball. 1. Power Supply that pulls off electrons.
1. Power Supply that pulls off electrons.
2, 4. Rollers.
3. Positively charged belt (lost some electrons)
8. Grounding wand, it can give or take electrons to make everything even again.
1931, Robert J. Van de Graaff (left) poses with his electrostatic generator and Karl T. Compton, MIT president
The largest VDG generator, on display at the Boston Museum of Science