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Van De Graaff Help!

  • Thread starter demhaha
  • Start date
  • #1
3
0

Homework Statement



I have to make a van de graaff generator for my physics class.

Homework Equations





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?

Homework Statement



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/electro/electro6.html The only difference is that mine uses a plastic pulley where the glass tube should go.

Homework Equations





The Attempt at a Solution


Homework Statement





Homework Equations





The Attempt at a Solution

 

Answers and Replies

  • #2
lewando
Homework Helper
Gold Member
1,349
135
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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