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Do You Know
Questions & Answers on General Knowledge.

What is a magnetic field?
The area around a permanent magnet has a force that can affect other magnets or magnetic materials that come near it. This area is called a magnetic field. Even the Earth has a magnetic field. It is like a huge bar magnet. Even if you cut a huge bar magnet into tiny pieces, each piece is still a magnet with its own small magnetic field.
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