Thevenin and Norton Equivalent Circuits

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Discussion Overview

The discussion revolves around finding the Thévenin and Norton Equivalent Circuits for a given electrical circuit, focusing primarily on the Thévenin equivalent. Participants are engaged in a homework-related inquiry involving circuit analysis.

Discussion Character

  • Homework-related

Main Points Raised

  • One participant requests assistance in finding the Thévenin equivalent circuit and asks for verification of their solution attempt.
  • Another participant confirms the correctness of the Thévenin-equivalent resistance and suggests that the open-circuit voltage needs to be determined between points A and B, noting that no current flows through a specific resistor when the circuit is open.
  • A participant questions whether there is an incorrect equation present in the discussion.
  • It is confirmed by another participant that there is indeed an incorrect equation, specifically the second one mentioned.
  • A participant proposes a specific equation relating the voltages at points B and A and the current flowing through a resistor.
  • This proposed equation is affirmed by another participant.

Areas of Agreement / Disagreement

Participants generally agree on the correctness of the Thévenin-equivalent resistance and the need to find the open-circuit voltage, but there is an acknowledgment of an incorrect equation without a clear consensus on the implications of that error.

Contextual Notes

There are unresolved aspects regarding the specific equations used and the implications of the incorrect equation mentioned, which may affect the overall analysis.

portuguese
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Homework Statement



Consider this circuit. Find the Thévenin and Norton Equivalent Circuits (just need the 1st one).

1TtGl.png


Homework Equations





The Attempt at a Solution



My attempt:

NutPt.png


Can someone check? Thanks a lot!
 
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The Thevenin-equivalent resistance is correct.
You need to find the open-circuit voltage between a an b. If it is open no current flows through the 100 ohm resistor, so all the 2A current of the current generator flows to B and then to A, through the 200 ohm resistor. So you know at VB-VA.

ehild
 
So, there's an incorrect equation, right?
 
Yes, the second one.

ehild
 
Is it just (VB-VA)/200=2?
 
Yes.

ehild
 
Thanks a lot!
 

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