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Circuits - Power absorbed / supplied

  1. Sep 10, 2010 #1
    1. The problem statement, all variables and given/known data

    I need to solve the circuit. I have trouble comprehending absorbed/supplied power concept.


    3. The attempt at a solution

    So, if power is being supplied by Vx then the current is passing out of the negative terminal towards the dependent source 4x and the element A?

    Vx * 4x= W?

    Second senario. The power is supplied by the dependent source 4x so again the current is passing out of negative terminal and being delivered to element A and source Vx?

    4Vx * 16= W?

    Here is the Circuit:
     

    Attached Files:

    Last edited: Sep 10, 2010
  2. jcsd
  3. Sep 11, 2010 #2

    CEL

    User Avatar

    Supplied power means that voltage and current have opposite signs. Absorbed (or dissipated) power means that voltage and current have the same sign.
    In your case, both Vx and the dependent source are supplying power, which is absorbed by or dissipated at element A.
     
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