12th Class Physics Alternating Current / प्रत्यावर्ती धारा

  • question_answer 9)
    A series LCR circuit with R = 20, L = 1.5 H and is connected to a variable frequency 200 V ac supply. When the frequency of the supply equals the natural frequency of the circuit, what is the average power transferred to the circuit in one complete cycle?  

    Answer:

    At natural frequency                                 Using, we get                 = 2000 W.  


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