- #1
sweetipie2216
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Homework Statement
Find the magnitude of the current in each branch of the circuit shown below, in which B1 = 1.96 V. Specify the direction of each current.
diagram: http://img183.imageshack.us/img183/6951/physics.gif
Homework Equations
I1+I2-I3=0
I1+I2=I3
The Attempt at a Solution
22I1+56(I1+I2)-5=0
78I1+56I2=5 EQUATION 1
-56(I1+I2)-75I2+B1
-56I1-131I2=-1.96
56I1+131I2=1.96 EQUATON 2
75I1+56I2=5
I1=(5-56I2)78
PLUGGED THAT INTO EQUATION 2 AND GOT: -.0179.<---- that's wrong.
i understand how to solve the equations for an unknown variable. what i want to know is why is my answer coming out wrong? Please help. Once i get this answer I will be able to solve the rest. Thanks.
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