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Difference between electromagnet and permanent magnet

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Difference between electromagnet and permanent magnet

    • Posted by Sai Pragyan 6 years, 7 months ago

    CBSE > Class 10 > Science
    • 2 answers

    Govind Singh 6 years, 3 months ago

    1. Permanent magnet is not so strong, but electromagnet is very strong.
    2. The strength of permanent magnet can't be changed, but that of electromagnet can be changed by changing the number of turns or the amount of current.
    3. Permanent magnet has permanent magnetism, but the  magnetism in electromagnet is temporary.
    4. The polarity of permanent magnet can't be changed, but that of an electromagnet can be changed by and negative terminals.

    0Thank You

    Arpita Mengi 6 years, 7 months ago

    Electromagnet is artificial temporary magnet .to is man made have strong magnetic field but permanent magnent is natural magnet and have weak magnet field

    0Thank You

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