Thevenin equivalent circuit

Discussion in 'Homework Help' started by harley101, Aug 24, 2014.

  1. harley101

    Thread Starter New Member

    Aug 24, 2014
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    http://imgur.com/YEB7JBD

    I am having trouble solving this problem, when I disconnect the load the circuit I obtain the two loops just connected together at one point. I have no idea how to solve this with nodal or mesh analysis. Any help would be appreciated.
     
  2. Jony130

    AAC Fanatic!

    Feb 17, 2009
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    Are you sure that you need to solve any equation?
    Don't forget that the current will only flow in closed loop.
    I only see two loop. First is Is1 and R1 and the scened loop is from Is2--->Vs--->R2--->Is2. So our loops current are Is1 and Is2, and notice that we already know this currents.
     
  3. harley101

    Thread Starter New Member

    Aug 24, 2014
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    No I don't know if we have to solve any equations. I was thinking we don't and they just give us all the parameters to trick us when we only need Vs and the resistances and that the voltage at a would just be 12v. So when we disconnect RL these are independents loops? They don't interact with each other right?
     
  4. vinnnie

    New Member

    Jan 21, 2013
    13
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    yes, you're right
     
  5. Jony130

    AAC Fanatic!

    Feb 17, 2009
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    Yes, after you disconnect RL resistor we left with two independents loops.
    And the correct answer for Vab voltage is 28V.
     
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