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Physical electronics devices and ics miscellaneous

Physical Electronics Devices and ICs


  1. Given gm = 2 mA/V, rd → ∞, |AV| =Vois given by—
    VS
    1. 5
      3
    2. 5
    3. 10
    4. 10
      3
Correct Option: B

Given gm = 2 mA/V, rd → ∞, |AV| =Vo=?
VS

AV =
Vo
= gm R′L where R′L = (5 || 5) k = 2.5 k.
VS

or AV = 2 × 10– 3 × 2.5 × 103 = 5
Hence alternative (B) is the correct answer.



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