# Van De Graaff Help!

by demhaha
Tags: van de graaff
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 P: 3 1. The problem statement, all variables and given/known data I have to make a van de graaff generator for my physics class. 2. Relevant equations 3. The attempt at a solution I put it together and it doesn't work at all. Please help. Is the reason it isn't working is that i don't have a glass tube or something else? 1. The problem statement, all variables and given/known data We build one using pvc pipe, thin rubber band, small dc motor, and 2 plastic pulleys, brush wire, and a can. I made it based on this tutorial http://scitoys.com/scitoys/scitoys/e.../electro6.html The only difference is that mine uses a plastic pulley where the glass tube should go. 2. Relevant equations 3. The attempt at a solution 1. The problem statement, all variables and given/known data 2. Relevant equations 3. The attempt at a solution
 PF Gold P: 1,053 If that's the only difference, then its probably a good clue. Try using a glass (or maybe nylon) tube. The reason for it not working is rubber and plastic are on the same end of the "triboelectric series".

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