Question

which metal are used to prepare electromagents​

Answer 1

Answer:

Electromagnets. Electromagnets are made from a coil of copper wire wound around a core made from iron, nickel or cobalt. The coiled wire will generate a magnetic field when an electric current passes through it, however, the magnetic field disappears the moment the current stops.

Explanation:

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Answer 2

Answer:

Iron,nickel,cobalt are metal used .