JEE Main & Advanced Physics Magnetic Effects of Current / करंट का चुंबकीय प्रभाव Question Bank Motion of Charged Particle In Magnetic Field

  • question_answer
    A charge moving with velocity v in X-direction is subjected to a field of magnetic induction in the negative X-direction. As a result, the charge will                                   [CBSE PMT1993]

    A)            Remain unaffected

    B)            Start moving in a circular path Y-Z plane

    C)            Retard along X-axis

    D)            Move along a helical path around X-axis

    Correct Answer: A

    Solution :

                       \[\overrightarrow{{{F}_{m}}}=q\,(\overrightarrow{v\,}\times \overrightarrow{B})\] When the angle between \[\overrightarrow{v\,}\] and \[\overrightarrow{B}\] is 180o, Fm = 0


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