differentiate between temporary and permanent magnets
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Types of Temporary Magnets. Temporary magnets are made from soft metals, and only retain their magnetism while near a permanent magnetic field or electronic current. Common temporary magnets include nails and paperclips, which can be picked up or moved by a strong magnet.
Magnets which possess higher retentivity and coercivity and retain the magnetic field for longer period are called permanent magnets. Example. Alnico, Nipermag, Steel.
The difference between a permanent magnet and a temporary magnet is in their atomic structures... Temporary magnets have their atoms aligned only while under the influence of a strong external magnetic field. Overheating apermanent magnet will rearrange its atomic structure and turn it into atemporary magnet..
Magnets which possess higher retentivity and coercivity and retain the magnetic field for longer period are called permanent magnets. Example. Alnico, Nipermag, Steel.
The difference between a permanent magnet and a temporary magnet is in their atomic structures... Temporary magnets have their atoms aligned only while under the influence of a strong external magnetic field. Overheating apermanent magnet will rearrange its atomic structure and turn it into atemporary magnet..
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