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Help with this problem - finding power transfer to R load

  1. Jul 8, 2012 #1
    help with this problem -- finding power transfer to R load :)

    http://img99.imageshack.us/img99/610/08072012060.jpg [Broken]

    i want help with finding Vth and finding power transfer to R load

    thanks all
     
    Last edited by a moderator: May 6, 2017
  2. jcsd
  3. Jul 8, 2012 #2

    lewando

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    Gold Member

    Re: help with this problem :)

    Rules require you to do some work first. What have you tried? Where are you getting stuck? What does the blanked out text say?
     
  4. Jul 8, 2012 #3
    Re: help with this problem :)

    sorry about the rules
    I found Rth but the major problem is finding Vth i don't know from where to start so i need some hints or tips because i am new in these things :)
    lets back to Rth i don't if it correct 100% but the value i found is 28/9

    ( about blanked --- determine the Rth and Vth ---)

    sorry again about the rules
     
    Last edited: Jul 8, 2012
  5. Jul 8, 2012 #4

    lewando

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    Gold Member

  6. Jul 8, 2012 #5
    Re: help with this problem :)

    thanks for your help

    Voc which is = Vth i found it hard to find so I found Isc then Vth =Rth*Isc and i get this 28/9k * 971/140m = 21.6 V
     
    Last edited: Jul 8, 2012
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