Node Voltage analysis- electrical engineering

AI Thread Summary
To find the power dissipated by each resistor using node voltage analysis, first ensure that the node voltage equations are correctly set up based on the circuit diagram. Once the voltages at each node are determined, use the relationship P = I x V, where I is the current through the resistor and V is the voltage across it. To find the current, apply Ohm's Law (I = V/R) for each resistor, substituting the node voltages into the equations. This will allow for the calculation of power for each resistor. Understanding these relationships is crucial for accurate power dissipation analysis.
electronicxco
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Ultimately, I am trying to find power dissipated by each resistor.

I already applied node voltage analysis to the circuit.

The picture shows the diagram of the problem and my attempted solution/ equations I came up with. In the diagram, I labeled the nodes and reference node. All else was given in the diagram.

Please let me know what the next step is in order to find power dissipated by each resistor,
or if my equations for node voltage are not correct.

Thank you in advance.
 
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If you have the potential over each resistor there is a very simply relationship that determines the power.
 
Last edited:
can you explain please?
i know that power P= current(I) x Voltage (V)

which v and I should i use?
 
Try combine the power equation you gave last with Ohm's law.
 

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