Disentangling the origin of chemical differences using GHOST
Magnets and electricity
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9. Electromagnets
• An electromagnet is a
magnet made by
winding a wire with a
current around on an
iron bar
– Electromagnets: found
in doorbells,
computers, speakers,
and telephones
10. Electromagnets
• Some cranes have electromagnets that can
pick up heavy loads of iron or steel
– When the operator turns the electromagnet off,
the load drops to the ground!
– http://www.absorblearning.com/media/item.acti
on?quick=4v
