Node Analysis on Circuit: Solving for R3 Current

AI Thread Summary
The discussion focuses on performing node analysis for a circuit to determine the current through resistor R3. The initial attempt at node analysis included equations for three nodes, but the poster expressed confusion about the process. After conducting mesh analysis, a current of 4A was calculated for R3, raising questions about its accuracy. Some participants doubted the validity of the problem, suggesting the current should flow differently. Ultimately, the poster resolved the issue by simplifying their approach, confirming the 4A current through R3.
Rigar
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Warned, no template, no effort
I have no idea how to do the node analysis for this circuit. I have done the mesh analysis and got the current in R3 to be 4A is this right?
 

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I know that there are two exceptional nodes at the center and at the first the voltage is 2v and the voltage drop across R4 is 60v
 
Our helpers are not allowed to help until you show your own attempt at the solution.
 
So
Node 1: (V2-10)/3=5
Node 2: ((V2-10)/3)-(V2/4)+((V2-V3)/10)
Node 3 (V3-V2)/10=-6
 
Rigar said:
I have no idea how to do the node analysis for this circuit. I have done the mesh analysis and got the current in R3 to be 4A is this right?

This question doesn't look right to me. Shouldn't the current flow toward the bottom right? Let's see what others think but I think this question is suspect.
 
I have solved it now. I just ignored the first node solved the second and third and got 4 A.
 

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