JEE Main & Advanced Physics Electro Magnetic Induction Question Bank Static EMI

  • question_answer
    Self-induction of a solenoid is                             [MP PMT 1993]

    A)            Directly proportional to current flowing through the coil

    B)            Directly proportional to its length

    C)            Directly proportional to area of cross-section

    D)            Inversely proportional to area of cross-section

    Correct Answer: C

    Solution :

               \[L={{\mu }_{0}}{{N}^{2}}A/l\]


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