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NEET Sample Paper NEET Sample Test Paper-60

  • question_answer
    D. A step up transformer operates on a 230V line and supplies current of 2A to a load. The ratio of the primary and secondary windings is 1: 25. The current in the primary is:

    A) 15A                 

    B) 50A    

    C) 25A                 

    D) 12.5A

    Correct Answer: B

    Solution :

    [b] \[\frac{{{N}_{p}}}{{{N}_{s}}}=\frac{1}{25}\] Transformer ratio \[{{I}_{S}}=2A\] \[\frac{{{N}_{p}}}{{{N}_{s}}}=\frac{{{I}_{S}}}{{{I}_{P}}}\] \[\frac{1}{25}=\frac{2}{{{I}_{P}}}\] \[{{I}_{p}}=50A\]


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