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  3. 12th Class
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  5. Alternating Current / प्रत्यावर्ती धारा

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

  • question_answer
    Quantity that remains unchanged in a transformer is

    A) voltage.

    B) current.

    C) frequency.

    D) none of these.

    Correct Answer: C

    Solution :

    Option [c] is correct. Explanation: Transformer does not change the frequency of the applied AC.


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