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Discussion :: Rectifiers and Converters

  1. In a mercury arc rectifier the cathode voltage drop is due to
    2. A.
    surface resistance
    B.
    expenditure of energy in liberating electrons from the mercury
    C.
    expenditure of energy in ionization
    D.
    expenditure of energy in overcoming the electrostatic field

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    Answer : Option B

    Explanation :

    expenditure of energy in liberating electrons from the mercury

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