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

  • question_answer
    A toroid has number of turns per unit length n, current i, then the magnetic field is                          [RPET 2000]

    A)    \[{{\mu }_{0}}ni\]       

    B)    \[{{\mu }_{0}}{{n}^{2}}i\]

    C)    \[{{\mu }_{0}}i/n\]     

    D)    None of these

    Correct Answer: A

    Solution :


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