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RAJASTHAN PMT Rajasthan - PMT Solved Paper-1996

  • question_answer
    The ratio of number of turns in secondary and primary coils of a stepup transformer is\[4:1\]. If the current in the primary coil is 4 amp. The current in the secondary coil is:

    A)  \[8A\]                                                 

    B)         \[2A\]                 

    C)         \[1A\]                                                 

    D)         \[0.5A\]

    Correct Answer: C

    Solution :

    For step up transformer \[\frac{{{N}_{P}}}{{{N}_{S}}}=\frac{{{I}_{S}}}{{{I}_{P}}}\] \[\frac{1}{4}=\frac{{{I}_{S}}}{4}\] \[\Rightarrow \] \[{{I}_{S}}=1amp\]


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