I'm having trouble with this circuit problem - Power

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The discussion revolves around a circuit problem requiring the determination of power output from power supplies and power conserved by resistors. The user expresses confusion about the multiple voltage lines in the circuit diagram. Participants suggest writing loop equations for the circuit and emphasize the importance of defining current directions to solve for unknowns. There is also a request for examples similar to the problem and guidance on effective keywords for searching. Understanding the current in the loops is highlighted as a crucial first step to calculate power.
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The homework problem is attached as a .jpg file and it states:
"For this circuit, determine the Power Output of each Power Supply & the Power Conserved by Each Resistor. The multiple lines kind of threw me for a loop for the 10v & 20V. Thanks and any help is much appreciated.

Jimbo Moore
 

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JMoore0150 said:
The homework problem is attached as a .jpg file and it states:
"For this circuit, determine the Power Output of each Power Supply & the Power Conserved by Each Resistor. The multiple lines kind of threw me for a loop for the 10v & 20V. Thanks and any help is much appreciated.

Jimbo Moore

Your attachment is awaiting approval. Perhaps you can host it somewhere else (such as photobucket) and we can help you a bit quicker.
 
You need to write 2 loop equations for the inner loops, remembering to take the current through the middle resistor as the sum of the 2 currents.

Pick a direction for the current in each loop and then add voltages around the loop. They should add to 0 over any closed loop.

You will have 2 equations. And you will have 2 unknowns I1 and I2. Just solve.
 
So where does the power output of the "power supply" and the power "Conserved" come into play with the equation? Why is there 2 ends to each voltage? That's throwing me off and so is trying to understand what exactly it is asking for. What directions do these 2 voltages cause throughout the circuit? Thanks!
 
Also, is there any examples on here or elsewhere that anyone knows of that have vast similarities to this equation? Or if I am to search for it, what should my keywords be? Thanks again!
 
As a first step don't you think you need to determine the current in the loops, so you can address the V*I of the voltage sources and the resistors?
 

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