Van de Graaff Generator

video embedded
Type of activity: demo
Activity code:  E-027c


Description:

1) Ground generator base (Banana jack)
2) Tape strings/fuzzies to the top of the metal sphere.
3) Place pie plates on top of the metal sphere
2) Turn on Generator

After a few minutes, the metal sphere should be charged up: observe the strings and pie trays. 

Discharge through the brass rod by holding onto the glass handles, and connecting the metal sphere to the generator base.

Optional: Connect one end of a fluorescent tube to ground, and place the other end close to the charged sphere in a darkened room.

There is also a set of Franklin's Bells in MP101 that can be connected to the Van der Graaff. (actually invented by Andrew Gordon according to online sources, ~1742)

The device is commonly misspelled Van de Graff, Van der Graaf or some combination thereof.

 

Video: Van de Graaff Generator with Pie Plates


source: https://play.library.utoronto.ca/9be46c0c10df78e2c7d9c5919aa4c83b

Video: Van de Graaff Generator with Styrofoam in a Plastic Container


source: https://play.library.utoronto.ca/50dd14782a820e446eabd2c1645490a8

Video: Van de Graaff Generator with Styrofoam in in Faraday's Cage


source: https://play.library.utoronto.ca/ef7d6333824aafbee3be97924f6719b0

Apparatus

Van de Graaff Generator
Brass Rod
String
Aluminum Pie Tray
Masking Tape
Filed under: