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A permanent magnet is a material that retains its magnetization without the need for an external magnetic field. It is characterized by having a magnetic field that persists over time. Common examples of permanent magnets include those made from materials like iron, cobalt, and certain alloys. These materials have aligned magnetic domains that create a lasting magnetic field, allowing them to attract or repel other magnets or magnetic materials.

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A permanent magnet is a magnet that retains its magnetic properties indefinitely, even after removing the external magnetic field.

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