Electrophorus

Back to 5A - Electrostatics
PIRA index: 5A10.20

Description

This method is a combination of the Triboelectric effect and Charging by induction. The result is a charged piece of metal which can easily give its charge. An insulator would only give its charge at the point of contact.

Equipment

• Fur
• Styrofoam plate
• Metallic disk

Instructions

• Charge the plate by rubbing the fur on it.
• Put the metallic disk on the plate.
• Ground the disk (The plate keeps most of its charge but the combination of both object is neutral, making the disk charged.)
• Separate the plate from the disk (be careful to not ground the disk once its not connected to the plate)

Images & Movies

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