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Explanation: Step 1 - Gather the Materials

To build the electromagnet described in our Magnets and Electromagnets experiment, you will need:

One iron nail fifteen centimeters (6 in) long

Three meters (10 ft) of 22 gauge insulated, stranded copper wire

One or more D-cell batteries

A pair of wire strip

Step 2 - Remove some Insulation

Some of the copper wire needs to be exposed so that the battery can make a good electrical connection. Use a pair of wire strip to remove a few centimeters of insulation from each end of the wire.

Step 3 - Wrap the Wire Around the Nail

Neatly wrap the wire around the nail. The more wire you wrap around the nail, the stronger your electromagnet will be. Make certain that you leave enough of the wire unwound so that you can attach the battery.

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