PURPOSE: To show that a small amount of energy can produce large magnetic forces.
DESCRIPTION: A magnet and keeper are held together by energizing the magnet with a flashlight battery. It usually takes more than one person pulling on each side to separate the magnet and keeper.
SUGGESTIONS: After two of the strongest guys in the class can't separate the magnet, separate it yourself (after discreetly disconnecting the battery), suggesting that they are really wimps.
REFERENCES: (PIRA unknown.)
EQUIPMENT: Battery operated magnet with keeper.
SETUP TIME: None.
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