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

  • question_answer
    If rotational velocity of a dynamo armature is doubled, then induced e.m.f. will become               [MP PMT 1991; AIIMS 2000]

    A)            Half                                          

    B)            Two times

    C)            Four times                            

    D)            Unchanged

    Correct Answer: B

    Solution :

               \[e\propto \omega \]


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