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

  • question_answer
    If rotational velocity of an armature is doubled, emf generated in a generator will be

    A) half.

    B) two times.

    C) four times.

    D) unchanged.

    Correct Answer: B

    Solution :

    Option [b] is correct. Explanation: emf generated = NBA As becomes double, emf generated also becomes double.


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