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  3. JAMIA MILLIA ISLAMIA

JAMIA MILLIA ISLAMIA Jamia Millia Islamia Solved Paper-2007

  • question_answer
        The   materials   suitable   for   making electromagnets should have

    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 :

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


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