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7th Class Science Electric Current and Its Effects Question Bank Electric Current and Its Effects

  • question_answer
    Identify the substance that is easy to magnetize and demagnetize?

    A)  Steel                           

    B)       Cobalt             

    C)       Soft iron                      

    D)       AInico

    Correct Answer: C

    Solution :

    Soft iron is easy to magnetize and demagnetize. Hence, it is used as a core in making electromagnets.


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