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J6-04. Low-Power High-Force Electromagnet

Purpose

To show that a small amount of energy can produce large magnetic forces.◙

Equipment

Battery operated magnet with 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.

Images

J6-04

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. ◙

 

J. Electrostatics And Magnetostatics

J. Electrostatics And Magnetostatics

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