Thevenin Equivalent: Calculate Eth & Rth

AI Thread Summary
The discussion focuses on calculating the Thevenin equivalent circuit, specifically Eth and Rth. The user has provided their calculations, stating Eth as 2V and Rth as 3.66 ohms, but expresses uncertainty about their accuracy due to a lack of recent study on Thevenin's theorem. Other participants suggest using a structured template for clarity and emphasize the importance of a readable circuit diagram for accurate analysis. They also recommend starting with specific assumptions about the circuit to simplify the calculations. Overall, the conversation highlights the need for clear communication and methodical approaches in electrical circuit analysis.
mectarek
Messages
5
Reaction score
0
I need the thevenin equivalent to this circuit, I've calculated Eth and Rth but i don't think my answer is correct
 

Attachments

  • 2014-06-18 00.41.36.jpg
    2014-06-18 00.41.36.jpg
    26.6 KB · Views: 503
Physics news on Phys.org
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
 
  • Like
Likes 1 person
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,,,
 
Kindly see the attached pdf. My attempt to solve it, is in it. I'm wondering if my solution is right. My idea is this: At any point of time, the ball may be assumed to be at an incline which is at an angle of θ(kindly see both the pics in the pdf file). The value of θ will continuously change and so will the value of friction. I'm not able to figure out, why my solution is wrong, if it is wrong .
TL;DR Summary: I came across this question from a Sri Lankan A-level textbook. Question - An ice cube with a length of 10 cm is immersed in water at 0 °C. An observer observes the ice cube from the water, and it seems to be 7.75 cm long. If the refractive index of water is 4/3, find the height of the ice cube immersed in the water. I could not understand how the apparent height of the ice cube in the water depends on the height of the ice cube immersed in the water. Does anyone have an...
Back
Top