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Homework Statement
We have the the circuit in the figure.
Homework Equations
I have to find I2.
KVL,KCL.
The Attempt at a Solution
I apply KVL in the "left " part of the circuit and I have -42 V+ 2I1 +8I2=0 .(I 1 is the current through 2 Ohm).I apply KCL in the nod between R1 R3 and R2 and I have (Current through R3)=I1-I2. I apply KVL in the right part of the circuit and I have -8I2+4(I1-I2) +2I2=0. I form a system with -42 V+ 2I1 +8I2=0 and -8I2+4(I1-I2) +2I2=0 and here I find that I1=(10/4)*I2.I replace this in 2I1+8I2=42 and I have I2=3.2 A.Is this correct?