Thevenin Equivalent Circuit

Discussion in 'Homework Help' started by Hitman6267, Apr 6, 2010.

  1. Hitman6267

    Thread Starter Member

    Apr 6, 2010
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    0
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    I'm pretty sure I need to find Rth using a test source but I can't seem to do it right. (A web form tells me my answer is wrong)


    What I tried, I added a current source of 5A to node A. And deactivated the 12V source. The next step for me is to find Vx so I can add it up with R2 * 5A and get Vth. In the end I'll get Rth from, Vth/Ith. But I have failed to get a right answer.
     
  2. immo

    New Member

    Apr 6, 2010
    8
    0
    im not very good in this myself
    but i would use 1A as test source and than by using nodel analysis i would find the voltage at node a (lets call it Vab) then divide Vab by 1 = Vab= Rth
    try it this way, it should be correct
     
  3. Hitman6267

    Thread Starter Member

    Apr 6, 2010
    82
    0
    got help with solving it thank you.
     
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