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BHU PMT BHU PMT (Mains) Solved Paper-2005

  • question_answer
    A vertical straight conductor carriers a current upward. A point P lies to the east of it at a small distance and another point Q lies to the west at the same distance. The magnetic field at P is:

    A)  greater than Q

    B)  same as at Q

    C)  less than at Q

    D)  greater of less than at Q depending upon the strength of current

    Correct Answer: B

    Solution :

                     Magnitude of magnetic field at any point due to a straight current carrying conductor depends only on the distance of the point with respect to current carrying conductor but not on the direction. Hence,\[{{B}_{p}}={{B}_{Q}}\](at same distance).


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