Question

Four materials that a magnet may be made of

Answer 1

Answer:

Lodestone, Iron, Nickel and Cobalt.

Explanation:

Lodestone, Iron, Nickel and Cobalt are the common materials used in a magnet.

Lodestone is basically a naturally occuring magnet made up of the mineral magnetite ($Fe_{3} O_{4}$).

Iron, Nickel and Cobalt are man-made magnet by the process of magnetisation (and doping).

There are many more materials used, such as alloys of rare earth metals.

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