Lecture Demos: Electricity and Magnetism, 5A20.20

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Pith Balls

 Pith Balls

A charged PVC or acrylic rod is used to charge the pith balls. The two will repel each other.

PIRA Code(s): 
5A20.20
Set up time: 
1 minute
Physics and Science Concepts: 
Electrostatics, Coulomb’s Law
Operation: 
Charge the rod by rubbing it the through the cloth provide or on your shirt. Hold the rod near a pith ball. The two balls will repel each other. The PVC gives a positive charge and the acrylic rod gives negative charge.
Safety: 
None

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