Thevenin circuit

Discussion in 'Homework Help' started by blueone, Dec 6, 2014.

  1. blueone

    Thread Starter New Member

    Dec 6, 2014
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    Hello

    so i have this circuit and I need to determine the Thevenin Voltage between point A and B and the thevenin restistance, so that I can determine the current throught the load resistor.

    [​IMG]

    I already determined the current ( 300 mA) with the nodal method, but I don't know how to do it with thevenin. I tried several times, but with no succes.
     
  2. ericgibbs

    AAC Fanatic!

    Jan 29, 2010
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  3. shteii01

    AAC Fanatic!

    Feb 19, 2010
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    Surely your textbook has examples of how to find Thevenin voltage and resistance.
     
  4. blueone

    Thread Starter New Member

    Dec 6, 2014
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    Yes I do I have a step by step way described in my book, but even tough I follow it. I can't get the results, for this problem. Other exercises on thevenin went fine.
     
  5. WBahn

    Moderator

    Mar 31, 2012
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    So show your work so that we can see what you are doing right and what you are doing wrong. Just present your best effort to solve your homework so that we have something to start from.
     
  6. Cliff Lian

    New Member

    Dec 25, 2014
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    Hey
    The thevenin's equivalent resistance is zero!!
     
  7. WBahn

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    Mar 31, 2012
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    Although the OP is pretty clearly long gone, please don't just provide answers to people's homework problems. That's not what this forum is about.
     
  8. crutschow

    Expert

    Mar 14, 2008
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    Hey
    How did you come up with that? :confused:
     
  9. WBahn

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    Mar 31, 2012
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    Considering that terminals A and B are connected direction across a two series-connected voltage sources....
     
  10. crutschow

    Expert

    Mar 14, 2008
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    I'm blind. :oops: Missed the other voltage source on the left.
     
  11. blueone

    Thread Starter New Member

    Dec 6, 2014
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    Sorry I know it has been a long time. Actually it is not a homework problem, it was a question from a test. My problem with thevenin is that I don't know what to do when they ask for a voltage or current in the middle of the circuit. But here is one of my countless tries [​IMG]
     
  12. WBahn

    Moderator

    Mar 31, 2012
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