brian0sofer3blaira brian0sofer3blaira

27-03-2017
Chemistry

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Electromagnets are created using charged and insulated wire wrapped around a piece of iron. uncharged and insulated wire wrapped around a piece of iron. insulated wire wrapped around a piece of plastic. charged and uninsulated wire wrapped around a piece of steel.

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Аноним Аноним

07-04-2017

I think the correct answer would be charged and insulated wire wrapped around a piece of iron. The charge in the wire would make magnetic fields through the aid of the magnetic properties of iron. Hope this helps. Have a nice day.

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