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Using Norton's theorem and superposition to find current

  1. Jan 24, 2016 #1
    Okay, the task is really not that hard but I am getting strange numbers.


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

    Find the current going through the resistor of 18 ohms.
    Circuit is shown in the first picture.

    2. Relevant equations


    3. The attempt at a solution
    I used norton theorem and superposition to find current In
    DSC_1042.jpg
    DSC_1043.jpg
    DSC_1044.jpg
     
    Last edited by a moderator: Jan 24, 2016
  2. jcsd
  3. Jan 24, 2016 #2
    Sorry for reposting it twice,missclick.
     
  4. Jan 24, 2016 #3

    NascentOxygen

    User Avatar

    Staff: Mentor

    Hi amsi. :welcome:

    In your second schematic you seem to be determining RN after deactivating all sources. You show three 10Ω resistors, but there should be only two; the third one shouldn't show because it is in series with a current source.
     
  5. Jan 24, 2016 #4
    Oh you are right I didn't even notice it ,thank you.
     
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