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Write any two characterstics of magnetic …

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Write any two characterstics of magnetic substance if it is to be used to make a permanent magnet .give an example of such a material

    • Posted by Md Shoaib 5 years, 11 months ago

    CBSE > Class 12 > Physics
    • 1 answers

    Yogita Ingle 5 years, 11 months ago

    Two characteristics of materials used for making permanent magnets:

    (a)high retentivity so that the magnet is strong and

    (b) high coercivity so that the magnetisation is not erased by stray magnetic fields, temperature fluctuations or minor mechanical damage.

     

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