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Mike Daniels
Mathematics
29 October, 20:00
What do you need to create an electromagnet
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Skylar Liu
29 October, 20:01
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Could you be a bit more specific about what you want to know? electromagnets vary in their complexity.
The simplest electromagnet might be a big steel nail wound with 100 or so turns of insulated copper wire, with 2 leads in the finished product. If you pass a small current through the wire, the nail acts like a magnet and may pick up small steel or iron items.
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