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

  • question_answer
    The ratio of secondary to primary turns is \[9:4.\] If power input is P, what will be the ratio of power output (neglect all losses) to power input                                              [DCE 1999]

    A)            4 : 9                                          

    B)            9 : 4

    C)            5 : 4                                          

    D)            1 : 1

    Correct Answer: D

    Solution :

               Since all the losses are neglected. So \[{{P}_{out}}={{P}_{in}}\]


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