Is Finding Thévenin's Equivalent Just Calculating Rth and Vth?

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Homework Help Overview

The discussion revolves around finding the Thévenin's equivalent circuit, specifically focusing on the calculations of Rth (Thevenin resistance) and Vth (Thevenin voltage). Participants express uncertainty regarding the inclusion of internal resistance in their calculations.

Discussion Character

  • Exploratory, Assumption checking

Approaches and Questions Raised

  • Participants question whether internal resistance should be considered in the calculations for Thévenin's equivalent. There is also a discussion about the sufficiency of calculating just Rth and Vth.

Discussion Status

Some participants have provided feedback on the calculations, indicating that while one participant's Rth appears correct, there may be an error in the calculation of Vth. The conversation reflects an ongoing exploration of the problem without a definitive resolution.

Contextual Notes

There is mention of a voltage divider in the context of calculating Vth, suggesting that assumptions about circuit configuration may be under consideration.

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Homework Statement



Find the Thévenin's equivalent.
SF1s5J7.png


Homework Equations



V=IR

The Attempt at a Solution


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I'm not sure if I need to take into account the internal resistance. And also, is finding thévenin's equivalent just calculating Rth and Vth?

I'm really lost sorry.
Many thanks.
 
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Crutchlow13 said:
I'm not sure if I need to take into account the internal resistance. And also, is finding thévenin's equivalent just calculating Rth and Vth?
Yup, the internal resistance of the battery counts. Rth and Vth are what you're after.
 
Thanks, do you think I got it?
 

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Crutchlow13 said:
Thanks, do you think I got it?
Your Rth looks good, but something went wrong with your final calculation of Vth. If you look at the resistors in the voltage divider you'd expect to see Vth = 1/2 of your v1...
 
Oh my god that was super silly.. Thanks gneill!
 

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