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  5. Alternating Current / प्रत्यावर्ती धारा

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

  • question_answer
    Quantity that remains unchanged in a transformer is:

    A) voltage                         

    B) current

    C) frequency                      

    D) None of these

    Correct Answer: C

    Solution :

    (c) frequency A transformer does not change the frequency of AC.


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