Okay everyone so this assigment:
So okay first thing that I need to do is find the direction of a current in each branch.
I thought that there is a rule for that, and that rule is "(while doing an assigment) current goes from + of voltage source to - of voltage source.
Following that rule, I did this:
And from that I wrote these 3 equations:
I2 = I1 + I 3
U1 + U2 + U3 = I1*(R1 + R2 + R3) + I2*R4
U4 + U3 = I3*(R5 + R6) + I2*R4
------------------------------------------------------
I2 = I1 + I 3
86 = 24*I1 + 20*I2
86 = 36*I3 + 20*I2
Did I do everything right here ? Because I got that I2 = -1.654 A
Did I do something wrong with equations or is my math just bad ?
So okay first thing that I need to do is find the direction of a current in each branch.
I thought that there is a rule for that, and that rule is "(while doing an assigment) current goes from + of voltage source to - of voltage source.
Following that rule, I did this:
And from that I wrote these 3 equations:
I2 = I1 + I 3
U1 + U2 + U3 = I1*(R1 + R2 + R3) + I2*R4
U4 + U3 = I3*(R5 + R6) + I2*R4
------------------------------------------------------
I2 = I1 + I 3
86 = 24*I1 + 20*I2
86 = 36*I3 + 20*I2
Did I do everything right here ? Because I got that I2 = -1.654 A
Did I do something wrong with equations or is my math just bad ?