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NEET Sample Paper NEET Sample Test Paper-5

  • question_answer
    A flat coil carrying a current has a magnetic moment \[\mu \]. It is placed in a magnetic field B. The torque on the coil is \[\tau \]. then;

    A)  \[\tau =\mu .B\]                            

    B)  \[\tau =B\times \mu \]

    C)  \[|\tau |=\mu .B\]        

    D)  It is perpendicular to both \[\mu \] and B

    Correct Answer: D

    Solution :

    We know that \[\tau =\mu \times B,\] hence it is perpendicular to both \[\mu \] and B.


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