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  1. A single phase half wave rectifier is feeding a resistive load. When a = 0, dc output voltage is 127 V. When a = 30°, the dc output voltage will be about

    2. A.
    127 V
    B.
    120 V
    C.
    110 V
    D.
    100 V

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    Answer : Option B

    Explanation :

    Using Eq

    = 0.933.

    Hence Vdc for 30° firing angle = 0.933 x 127 = ≈ 120 V.

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