An electromagnet is made by winding an insulated copper wire on an iron cylinder 'why should the copper wire be insulated
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It is made from very thin strands of wire which have been covered in enamel to insulate them from each other. An electromagnet is a coil of wire with an electric current flowing through it. When the wire is coiled around in a cylinder, we call this a solenoid. ... Also, copper wire can be easily shaped to make a coil.
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