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mike1128
hi everyone...
i have a question in an experiment using copper wire, iron nail and battery..
where did the magnet in the nail come from?
synthsin75
Ampère's law
Robittybob1
QUOTE (mike1128+Mar 27 2012, 05:15 PM)
hi everyone...
i have a question in an experiment using copper wire, iron nail and battery..
where did the magnet in the nail come from?

You can rub another magnet against it. Some magnetism will be transferred.
Lasand
Are you asking about this simple electromagnet?

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