JEE Main & Advanced Physics Magnetic Effects of Current / करंट का चुंबकीय प्रभाव Question Bank Self Evaluation Test - Moving Charges and Mangetism

  • question_answer
    A charged particle moves insides a pipe which is bent as shown in fig. If \[R>\frac{mv}{qB}\], then force exerted by the pipe on charged particle at P is (Neglect gravity)        

    A) toward center

    B) away from center

    C)        zero

    D) none of these    

    Correct Answer: A

    Solution :

    [a] Radius of circular path of the charged particles \[r=\frac{mV}{qB}\] Here R < r, hence the particle will press the outer wall of the pipe hence the force applied by the pipe on the particle should be towards the centre of the pipe.


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