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  5. Alternating Current / प्रत्यावर्ती धारा

12th Class Physics Alternating Current / प्रत्यावर्ती धारा Question Bank Case Based (MCQs) - Alternating Currents

  • question_answer
    Power in secondary coil is:

    A) 15 W                            

    B) 20 W   

    C) 7 W                             

    D) 8 W

    Correct Answer: A

    Solution :

    (a) 15 W Power in secondary coil, \[{{P}_{S}}={{E}_{S}}\times {{l}_{S}}=3\times 5=15\,W\]


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