This activity demonstrates the direction and power of electric field lines and equipotential surfaces. A fluorescent tube illuminates in mid-air when positioned radially to the charged metallic spheres of a Van der Graaf generator. A stack of pie tins placed on top of the generator will be repelled, one tin at a time.

Blueprint Stats:

Cost: cost
Field: Physics
Prep Time: 5 minutes
Active Time: 30 minutes
Level: 7-9 & 10-12
Mess Factor: mess
CAUTION: This project requires the use of a Van der Graaf generator.