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Superposition theorem problem.

  1. Aug 22, 2011 #1
    In the problem attached do you use superposition theorem.
    if so how do you use it?
    I dont know how to solve circuits with 2 voltages.
     

    Attached Files:

  2. jcsd
  3. Aug 22, 2011 #2

    berkeman

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    Staff: Mentor

    Nah. Just write the KCL equation for the node between R1 and R2 and solve.
     
  4. Aug 22, 2011 #3
    thanks for the reply. which voltage do I use?
     
  5. Aug 22, 2011 #4

    berkeman

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    Staff: Mentor

    Have you learned how to write the KCL equations yet for a circuit?

    You write the equation that shows that the sum of all curents out of a node is zero. So in your problem, label the node between R1 and R2 as "Vx", and write the equation that shows that the sum of the 3 currents *out* of that node add to zero. Then solve away!
     
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