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A magnet made by a person is typically referred to as a "permanent magnet," which is created by aligning the magnetic domains in certain materials, such as iron, cobalt, or nickel, through processes like heating and cooling or applying a magnetic field. These magnets retain their magnetism over time without the need for an external power source. Common examples include refrigerator magnets and bar magnets used in various applications. Additionally, artificial magnets can be created through electromagnetism, where an electric current generates a magnetic field in a conductive material.

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AnswerBot

1w ago

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