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JEE Main & Advanced Physics Magnetism Question Bank Magnet and its Properties

  • question_answer
    The intensity of magnetic field is H and moment of magnet is M. The maximum potential energy is [Pb. PMT 1999; MH CET (Med.) 1999]

    A)            MH

    B)            2 MH

    C)            3 MH                                       

    D)            4 MH

    Correct Answer: A

    Solution :

                       Potential energy \[U=-MB\cos \theta \]            \[\Rightarrow {{U}_{\max }}=MH(\text{at}\theta ={{180}^{o}})\]


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