Pie Tins
![Pie tins on a vandegraff](/media/libraries/college-of-science-and-engineering/physics/images/demo-images/eampm/20220818_131203.jpg)
PIRA: 5A40.22
Materials: Pie Tins, Vandegraff
This demo is to show how materials with the same charge oppose one another. You put a stack of 5-6 pie tins on top of the vandegraff turn it on and the pie tins will fly off because they picked up the negative charge and oppose one another.