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## Homework Statement

Basically, find V

_{ab}

[PLAIN]http://carlodelmundo.com/hw/circuit.png [Broken]

Is this correct -- note: please tell me that my methodology is sound; DO NOT GIVE ME A NUMERICAL ANSWER.

The problem asks for V

_{AB}. What's weird to me is that there is a potential across two terminals? (The weird part is: the terminals are connected to another voltage source!)

I used KVL... and I'm fairly accurate that my calculation is correct. However, I am confused with finding the actual V

_{AB}. Can I simply apply Ohm's law, and "lump" all of the resistors into one resistor (composition?) Would V

_{AB}be equivalent to the sum of all the voltages (taking polarities into account)?

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