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Double battery circuit 
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#1
Feb2011, 02:25 PM

P: 2

1. The problem statement, all variables and given/known data
I have this circuit: http://img59.imageshack.us/i/doublebattery.png/ 2. Relevant equations what are the currents I1, I2, and I3 and the power being delivered on each resistor 3. The attempt at a solution i've tried doing 3 equations using the kirchhoff rules but i end up with the wrong answer...my equations were 21  I1R1  I3R = 0 15  I2R2  I3R = 0 I3 = I1 + I2 what am i doing wrong? 


#2
Feb2011, 02:39 PM

Mentor
P: 11,685

Must be a problem with your algebra. Your equations appear to be set up okay.



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