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

  • question_answer
    A step up transformer has transformation ration 5 : 3. What is voltage in secondary if voltage in primary is 60 V [Pb. PET 2000]

    A)            20 V                                         

    B)            60 V

    C)            100 V                                       

    D)            180 V

    Correct Answer: C

    Solution :

               Transformation ratio \[k=\frac{{{V}_{s}}}{{{V}_{p}}}\Rightarrow \frac{5}{3}=\frac{{{V}_{s}}}{60}\Rightarrow {{V}_{s}}=100\ V\]


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