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

  • question_answer
    A power transmission line feeds input power at 2400V to a step down transformer with its primary windings having 4000 turns. What should be the number of turns in the secondary windings in order to get output power at 240 V?

    A) 400                  

    B) 420    

    C) 424                              

    D) 436

    Correct Answer: A

    Solution :

    (a) 400 


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