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

  • question_answer
    The number of turns of primary and secondary coils of a transformer are 5 and 10 respectively and the mutual inductance of the transformer is 25 henry. Now the number of turns in the primary and secondary of the transformer are made 10 and 5 respectively. The mutual inductance of the transformer in henry will be                                          [MP PET 1995]

    A)            6.25                                          

    B)            12.5

    C)            25  

    D)            50

    Correct Answer: C

    Solution :

               \[M=\frac{{{\mu }_{0}}{{N}_{1}}{{N}_{2}}A}{l}\]


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