Req question

Discussion in 'Homework Help' started by freemindbmx, Jul 3, 2014.

  1. freemindbmx

    Thread Starter Member

    Mar 5, 2014
    72
    0
    My friend gave me abunch of practice problems for practice and got kinda stuck on this. I tried labeling a KCL for each node with the current leaving the + end of the independent source. But I circled the problem resistor red and gave two ways it might begin,either (X or Y).Any help would be great on how to start it. X seems more logical imo
     
  2. freemindbmx

    Thread Starter Member

    Mar 5, 2014
    72
    0
    Last time I checked, the algebraic sum of current going in a node must equal current going out of the node.Picture below. Please let me know if I made a mistake.

    And I know I could just hook up a 1Amp source to it and find the voltage across the source and use Req=Vtest/Itest in a real world application if I cant figure it out or if its irreducible.
     
    Last edited: Jul 4, 2014
  3. shteii01

    AAC Fanatic!

    Feb 19, 2010
    3,387
    497
    You are right. I think I was thinking of Node Voltage Method.
     
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