JEE Main & Advanced Physics Magnetic Effects of Current / करंट का चुंबकीय प्रभाव JEE PYQ-Magnetic Effects Of Current

  • question_answer
    The materials suitable for making electromagnets should have            [AIEEE 2004]

    A) high retentivity and high coercivity

    B) low retentivity and low coercivity

    C) high retentivity and low coercivity

    D) low retentivity and high coercivity

    Correct Answer: C

    Solution :

    [c] Electromagnets are made of soft iron. The soft iron has high retentivity and low coercivity.


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