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NEET Sample Paper NEET Sample Test Paper-30

  • question_answer
    A bar magnet of magnetic moment \[\overrightarrow{M}\]is placed in the magnetic field B. The torque acting on the magnet is:

    A)  \[\overrightarrow{M}\times \overrightarrow{B}\]              

    B)  \[\overrightarrow{M}-\overrightarrow{B}\]

    C)  \[{\scriptstyle{}^{1}/{}_{2}}\overrightarrow{M}\times \overrightarrow{B}\]                   

    D)  \[\overrightarrow{M}+\overrightarrow{B}\]

    Correct Answer: A

    Solution :

    From formula torque acting on the magnet is given by: \[\vec{\tau }=\overrightarrow{M}+\overrightarrow{B}\] Where, \[\overrightarrow{M}\] = magnetic moment \[\overrightarrow{B}\]= magnetic field          


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