How to Magnetize an Iron Nail?

Answer

One can magnetize an iron nail by rubbing another iron nail against it. One can also warp a coil of insulated copper wire around an iron nail. Then to magnetize the nail, one simply adds a current of electricity to the iron nail.
Q&A Related to "How to Magnetize an Iron Nail?"
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Iron has a density of approximately 7.86g/cm3. Nails are not usually made from pure iron, but from soft steel, a mixture of iron and carbon. The density, however, is pretty much the
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The density of iron is rho = 7,860 kg/m³.
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