A kirchoff's law question with multiple batteries

AI Thread Summary
The discussion centers on solving for the voltage across a 5-ohm resistor in a circuit with multiple batteries. The user initially calculated a voltage of 6.5V but struggled with the problem for two weeks. A suggestion was made to always refer to voltage as "across" an element to clarify the approach. The importance of using Kirchhoff's laws and writing a KCL node equation was emphasized for solving the circuit. Ultimately, the user resolved the issue independently after receiving guidance.
Chester8990
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Homework Statement


To find the voltage at the 5 ohms resistor.


Homework Equations


V=IR
Kirchoff's first and second law



The Attempt at a Solution


The attempt was simply too long
I ended up with a voltage of 6.5V on the 5 ohm resistor...
Please help me, I have been stuck in this same question for two weeks.
What I wasn't confident with was the three batteries too...
 

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Could I suggest that you do yourself a favour and resolve to never refer to a voltage "at" any element? By always referring to "a voltage across[/color]" an element, or to a "voltage between two points[/color]" you will be giving yourself a subtle reminder of how you must go about determining the parameter.

So, what approach will you use for determining the voltage across the resistor in question?
 
You'll have to show an attempt before we can know how to help. Them's the rules.

As a suggestion, write a KCL node equation for the node where all the resistors come together. Choose the bottom node as the ground reference.
 
never mind guys i solved it, thank you
 

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