No. Electromagnets are usually made of a core (some type of metal that can be magnetized such as iron) and a coil. The coil is put around the core, and if current flows through the coil the core will...
bar magnets
You can use it for sticking stuff on metal, can give them as gifts, and also to do experiments in science. I usaully use them on the refridgerater.
K&J Magnetics www.kjmagnetics.com
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