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Intuition for testing source in thevenin/norton

  1. Feb 14, 2010 #1
    when i have a system of only dependant sources and i want to find its norton /thevenin
    representation i need to add a testing source on the ports from whome we want to see the reaction

    how to know that i should put a voltage source or current source
    ?
     
  2. jcsd
  3. Feb 15, 2010 #2

    CEL

    User Avatar

    It is irrelevant. If you put a voltage source, you must evaluate how much current it supplies to the circuit in order to calculate its equivalent impedance. If you use a current source, you must evaluate the voltage across its terminals do do the same calculation.
     
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