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AIIMS AIIMS Solved Paper-2014

  • question_answer
    A 50 Hz AC current of crest value 1 A flows through the primary of a transformer. If the mutual inductance between the primary and secondary be 0.5 H, the crest voltage induced in the secondary is

    A) 75V                                       

    B) 150V

    C) 100V    

    D) None of these

    Correct Answer: C

    Solution :

                    \[di=2-(1-1)=2A\] \[dt=\left( \frac{1}{100} \right)\] \[M=0.05H\] \[e=M\frac{di}{dt}\] \[=0.5\left( \frac{2}{1/100} \right)\] \[=0.5\times 2\times 100\] \[e=100V\]                                


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