Help with this problem - finding power transfer to R load

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Discussion Overview

The discussion revolves around a problem related to finding the Thevenin equivalent voltage (Vth) and the power transfer to a resistive load (R load). Participants are exploring methods to calculate these values, focusing on Thevenin's theorem and related concepts.

Discussion Character

  • Homework-related

Main Points Raised

  • One participant requests help with finding Vth and power transfer to R load, indicating they are new to the topic.
  • Another participant reminds the original poster to provide their initial attempts and where they are struggling, emphasizing the rules of the forum.
  • The original poster mentions they have found Rth but are uncertain about Vth, seeking hints or tips to proceed.
  • A participant provides a reference link to lecture notes on Thevenin and Norton equivalents, which may assist in understanding the concepts better.
  • The original poster calculates Vth using the formula Vth = Rth * Isc, arriving at a value of 21.6 V, but does not confirm the correctness of their calculations.

Areas of Agreement / Disagreement

There is no consensus on the correctness of the calculations presented, and participants have not fully resolved the uncertainties regarding the methods for finding Vth.

Contextual Notes

The original poster's calculations and assumptions regarding Rth and Vth are not verified, and there are missing details about the circuit that may affect the analysis.

akatsuki_93
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help with this problem -- finding power transfer to R load :)

http://img99.imageshack.us/img99/610/08072012060.jpg

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

thanks all
 
Last edited by a moderator:
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Rules require you to do some work first. What have you tried? Where are you getting stuck? What does the blanked out text say?
 


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
 
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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:

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