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

  • question_answer
    Field inside a solenoid is                                         [MP PMT 1993]

    A)            Directly proportional to its length

    B)            Directly proportional to current

    C)            Inversely proportional to total number of turns

    D)            Inversely proportional to current

    Correct Answer: B

    Solution :

               \[B={{\mu }_{o}}ni\]


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