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Calculations for a JFET

  1. Nov 20, 2004 #1
    When doing some calculations for a JFET (n-channel), I guess u all know this equation:

    Id = Idss( 1 - (Ugs/Up))^2

    my question is, am i supposed to take the absolute values (modulus) of Ugs and Up???

    Id = drain current
    Idss = saturated drain-source current
    Ugs = gate-source voltage
    Up = pinch off voltage.

    pls, kinda an urgency!!
    thanks! :smile:
  2. jcsd
  3. Nov 24, 2004 #2
    u cam take the modulas in case of p-jfet
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