JEE Main & Advanced Physics Magnetic Effects of Current / करंट का चुंबकीय प्रभाव Question Bank Biot-savart's Law and Amperes Law

  • question_answer
    A vertical straight conductor carries a current vertically upwards. 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                [MNR 1986; DPMT 2004]

    A)            Greater than at Q

    B)            Same as at Q

    C)            Less than at Q

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

    Correct Answer: B

    Solution :

               If distance is same field will be same \[\left( \because \,B=\frac{{{\mu }_{0}}}{4\pi }\cdot \frac{2i}{r} \right)\]


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