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12th Class Physics Alternating Current / प्रत्यावर्ती धारा Question Bank MCQ - Alternating Currents

  • question_answer
    When power is drawn from the secondary coil of the transformer, the dynamic resistance:

    A) increases                       

    B) decreases

    C) remains unchanged        

    D) changes erratically

    Correct Answer: A

    Solution :

    (a) increases


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