JEE Main & Advanced Physics Electro Magnetic Induction Question Bank Application of EMI (Motor, Dynamo, Transformer)

  • question_answer
    In a step up transformer, 220 V is converted into 200 V. The number of turns in primary coil is 600. What is the number of turns in the secondary coil                                      [DCE 2004]

    A)            60  

    B)            600

    C)            6000                                         

    D)            100

    Correct Answer: C

    Solution :

               \[\frac{{{N}_{s}}}{{{N}_{p}}}=\frac{{{V}_{s}}}{{{V}_{p}}}\Rightarrow \frac{{{N}_{s}}}{600}=\frac{2200}{220}\Rightarrow {{N}_{s}}=6000\]


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