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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 primary coil is:

    A) 20 W                            

    B) 5 W    

    C) 10 W                            

    D) 15 W

    Correct Answer: D

    Solution :

    (d) 15 W Power in primary, \[{{P}_{P}}={{E}_{P}}\times {{l}_{P}}=120\times 0.125\] \[=15\,W\]


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