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Homework Help: Thevinin Equivalent

  1. Dec 31, 2013 #1

    Im trying to find the Thevinin Equivalent of the attached circuit.

    The answers im getting are
    Vth = 20v
    Rth = 10kΩ

    The attachment shows my workings for the problem.

    Please advise if there are any errors in my work and if you could where and what i need to do to correctly solve them.

    Many Thanks

    Attached Files:

  2. jcsd
  3. Dec 31, 2013 #2
    Hi, the correct answer for Vth voltage is 30V, its looks like you simply forget about 2mA constant current source in your approach.
    And yes Rth is indeed equal to 10K.
  4. Jan 2, 2014 #3
    Thanks very much for the reply Jony130 and for pointing out my mistake.

    I've attached my revised workings could you check to see if the steps I have taken are correct, im trying to solve this using a source equivalent method.

    Thanks again.

    Attached Files:

  5. Jan 2, 2014 #4
    I don't see any mistake so good job for You.
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