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J & K CET Engineering J and K - CET Engineering Solved Paper-2004

  • question_answer
    The temperature at which ferromagnetic material becomes paramagnetic is called a

    A)  neutral temperature

    B)  Curie temperature

    C)  inversion temperature                 

    D)  critical temperature                   

    Correct Answer: B

    Solution :

    Ferromagnetism decreases with rise in temperature. If a ferromagnetic substance is heated, then at a definite temperature the ferromagnetic property of the Substance suddenly disappears and the substance becomes paramagnetic. The temperature above which a ferromagnetic substance becomes paramagnetic is called Curie temperature.


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