
#1
Jun1311, 10:37 PM

P: 10

1. The problem statement, all variables and given/known data
Find the Thevening Equivalent Circuit for the following circuit: 2. Relevant equations KVL, KCL. 3. The attempt at a solution First of all, I calculate the current in the middle mesh, which I'll call i2: [tex]  j25 = ({i_2}  {i_1})(3 + j4) + {i_2}(10)[/tex] where i1 is the current defined by the current source. Once I've got i2, I multiply that by 10 to get the voltage in the 10 ohm resistor, and after that I calculate Vab using: [tex]{V_{ab}} = j25  10({i_2})[/tex] However, the result is incorrect (should be 22,2 V with a 98º angle). What am I doing wrong? I've used the same method with other circuits and it worked just fine. 



#2
Jun1411, 06:28 AM

Sci Advisor
HW Helper
Thanks
P: 26,167

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