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Discussion :: Electronic Devices and Circuits

  1. If ib is plate current, eb is plate voltage and ec is grid voltage the v-i curve of a vacuum triode is
    ib = 0.003 (eb + kec)n. Typical values of k and n are

    2. A.
    0.5 and 1
    B.
    - 2 and 1
    C.
    30 and 1
    D.
    30 and 1.5

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    Answer : Option D

    Explanation :

    k has to be much higher than 1 so that grid is effective in controlling plate current n is not 1 because it is a nonlinear device.

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