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

  • question_answer
    The underlying principle of transformer is

    A) resonance.

    B) mutual induction.

    C) self induction.

    D) none of the above.

    Correct Answer: B

    Solution :

    Option [b] is correct. Explanation: The transformer is based on the  principle of mutual induction which state that due to continuous change in current in the primary coil, an emf is induced across the secondary soil.


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