Help with Van de Graaff Generator & PVC Pipe Setup

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    Van de graaff
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The discussion focuses on troubleshooting a Van de Graaff generator project made with PVC pipe, a small DC motor, and plastic pulleys. The user reports that the generator is not functioning and questions whether the absence of a glass tube is the issue. Responses suggest that the use of a plastic pulley instead of glass could be the problem, as materials in the same end of the triboelectric series do not generate sufficient charge. Recommendations include trying a glass or nylon tube to improve performance. The conversation emphasizes the importance of material selection in electrostatic devices.
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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

 
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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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