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

  • question_answer
    The magnetic field B with in the solenoid having n turns per metre length and carrying a current of i ampere is given by              [MP PET 1993]

    A)            \[\frac{{{\mu }_{0}}ni}{e}\]   

    B)            \[{{\mu }_{0}}ni\]

    C)            \[4\pi {{\mu }_{0}}ni\]     

    D)            ni

    Correct Answer: B

    Solution :

               Magnetic field inside the solenoid \[{{B}_{in}}={{\mu }_{0}}ni\]


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