Engineering Calculating Vx in a Circuit with Superposition and Kirchoff's Laws

AI Thread Summary
The discussion focuses on calculating Vx in a circuit using superposition and Kirchhoff's Laws. The initial calculation yielded a result of 9.818181V. However, a participant pointed out a sign error in the voltage contribution from the 40-volt source, correcting it to -80/11 instead of +80/11. This highlights the importance of careful sign consideration in circuit analysis. Accurate calculations are crucial for determining the correct voltage in electrical circuits.
Mark Nussbaum

Homework Statement


upload_2017-9-19_1-19-38.png


Homework Equations


current/voltage division
V=IR
Kirchoffs Laws

The Attempt at a Solution


NjqKa5v

and adding all Vx I get 9.818181V.[/B]
 

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Mark Nussbaum said:

Homework Statement


View attachment 211347

Homework Equations


current/voltage division
V=IR
Kirchoffs Laws

The Attempt at a Solution


NjqKa5v

and adding all Vx I get 9.818181V.[/B]

You've got a sign error. The component of Vx produced by the 40 volt source is -80/11, not +80/11.
 
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