Thevenin Equivalent: Calculate Eth & Rth

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Homework Help Overview

The discussion revolves around finding the Thevenin equivalent circuit at specific terminals of a given circuit. Participants are addressing the calculation of the Thevenin voltage (Eth) and resistance (Rth), with some expressing uncertainty about their results.

Discussion Character

  • Exploratory, Assumption checking, Problem interpretation

Approaches and Questions Raised

  • The original poster attempts to calculate Eth and Rth but questions the correctness of their answers. Other participants request clarification on the expressions used and encourage showing work. There are suggestions to analyze the circuit under different conditions to find Eth.

Discussion Status

The discussion is ongoing, with participants providing guidance on how to approach the problem. Some are questioning the clarity of the original poster's circuit diagram, while others are exploring different methods to calculate Eth and Rth.

Contextual Notes

There is mention of the original poster's lack of recent study on Thevenin's theorem, which may be affecting their confidence in the calculations. The readability of the circuit diagram is also noted as a potential barrier to effective analysis.

mectarek
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I need the thevenin equivalent to this circuit, I've calculated Eth and Rth but i don't think my answer is correct
 

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Hello mec, please use the template to show us what expressions / equations you have available to deal with this exercise. And show us your work. Eth, Rth. And why you think your answer is not right.
In short: use the template
 
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1. Homework Statement
Find the Thevenin equivalent circuit at terminals (a,b) of the circuit:


2. Homework Equations

Eth= E
Rth= (R4+R5)//R3 +R1

3. The Attempt at a Solution
so Eth=2v and Rth= 3.66 ohm

the reason why I think the answer is not correct is that i have not studied Thevenin for a long time :)


Read more: https://www.physicsforums.com
 
It would help if your drawing were readable, but it appears that your analysis of the resistive network makes no sense at all. I can't be positive of that because I can't really read the diagram.
 
Start with Eth. Assume Rc is infinite and calculate the voltage over Rc.
Continue with Rc = 0. Assume Rc is zero and calculate the current through Rc.

[edit] Oh, and if studying something is a problem, sometimes Googling is enough nowadays. The Wiki thing is crystal clear,,,
 

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