1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Amplifiers homework problem

  1. Apr 19, 2011 #1

    ___

    User Avatar

    1. The problem statement, all variables and given/known data

    fzah6b.jpg

    2. Relevant equations

    [tex]dI = \frac{\partial I}{\partial V_{GS}} dV_{GS} + \frac{\partial I}{\partial V_{DS}}dV_{DS}[/tex]


    3. The attempt at a solution

    I was just wondering why [tex]\small V_{G}[/tex] is at 0. I have solved the entire question (there are more parts :P), but I could only do it once I was told that [tex]\small V_{GS} = - V_S + V_G = - V_S[/tex]. I am having a hard time getting my head around that.
    Shouldn't [tex]\small V_{G}[/tex] simply be [tex]\small V_{i}[/tex]?
     
  2. jcsd
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Can you offer guidance or do you also need help?
Draft saved Draft deleted



Similar Discussions: Amplifiers homework problem
  1. Mosfet Amplifier Problem (Replies: 13)

Loading...