Stap 2: Stap 2: voorbereiden van de elektromagneet.
After you have prepared the electromagnet, strip both ends of the wire.
Also, for every two layers of wire you will need two batteries(1.5v). Do not use more than this unless you have a nail that is very long. Then you will need to use more wire. If you use (6) 1.5v D batteries or (2) 6v batteries) on a two layer electromagnet your battery will heat up and may explode. Your wire will surely melt or get red hot. Again, for your safety , do not use more than is needed in this instuctable .
For my biggest electromagnet(8 or 9 layers) I need four or five (1.5v batteries).
You should try two layers as a test then try 8 layers.
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