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Discussion :: GATE Instrumentation

  1. The following arrangement consists of an ideal transformer and an attenuator, which attenuates by a factor of 0.8. An ac voltage VWX1 = 100V is applied across WX to get an open circuit voltage VYZ1 across YZ. Next, an ac voltage VYZ2 100V is applied across YZ to get an open circuit voltage VWX2 across WX. Then, VYZ1/VWX1, VWX2/VYZ2 are respectively,

    2. A.
    125/100 and 80/100
    B.
    100/100 and 80/100
    C.
    100/100 and 100/100
    D.
    80/100 and 80/100

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    Answer : Option B

    Explanation :

    -NA-

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