How do electromagnets work?



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    An electromagnet in its simplest form consists of a strand of wire wrapped around a piece of metal.  One end of the wire is connected to the positive end of a battery, the other end of the wire to the negative end of the battery.  The coiled wire creates a magnetic field.


    Simple Electromagnet: Image Credit, Marshall Brain

    Simple Electromagnet: Image Credit, HowStuffWorks

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