What is the composition of a natural magnet?
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Answer:
A natural magnet is an ore of iron that attracts small pieces of iron, cobalt, and nickel towards it. It is usually an oxide of iron named Fe3O4. Magnetite or lodestone is a natural magnet.
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Explanation:
There is a group of materials known as ferromagnetic materials. This group includes iron, cobalt, nickel, and some alloys of rare earth elements (mainly neodymium and samarium). These ferromagnetic materials can be made magnetic by exposing them to a magnetic field using electric current.
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