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Homework Help: Thevenin equivalent

  1. Feb 11, 2014 #1
    1. The problem statement, all variables and given/known data
    http://postimg.org/image/5wtty6dvr/ [Broken]

    I'm trying to find the Thevenin equivalent of the circuit on the left side and but having trouble in getting the open circuit voltage.

    Does no current flow through R3 since that way leads to a dead end?
    Last edited by a moderator: May 6, 2017
  2. jcsd
  3. Feb 11, 2014 #2


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    Gold Member

    How could any current flow through R3?
    There is no way to go for any current.
    Therefore the open-circuit voltage is easy to calculate.
  4. Feb 11, 2014 #3


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    Homework Helper

    Yes, no current flows through R3 when the circuit is "open". If no current flows, what is the potential difference between the terminals of that resistor?

    Last edited by a moderator: May 6, 2017
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