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  5. Alternating Current / प्रत्यावर्ती धारा

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

  • question_answer
    Power in primary coil is

    A) 20 W

    B) 5 W

    C) 10 W

    D) 15 W

    Correct Answer: D

    Solution :

    Power in primary, \[{{P}_{p}}={{E}_{p}}\times {{I}_{p}}\] \[=120\times 0.125=15\,W\]


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