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Newbie's electric circuit simplification question

  1. Feb 14, 2012 #1
    1. The problem statement, all variables and given/known data
    Simplify the circuit as much as possible to prepare it for node analysis.

    119tlwl.png

    2. Relevant equations
    KCL (sum of all currents through a node equal zero)
    Ohm's law V=RI

    3. The attempt at a solution
    I'd like to use node analysis. But first I have simplified the circuit and landed at this new circuit:

    ifbn95.png

    I have no key answer to look at and I feel rather insecure at electronics. Are my simplifications correct? I.e. are those two circuits equivalent?

    Thanks.
     
  2. jcsd
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