- #1
womatama
- 3
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Homework Statement
http://imgur.com/DuBgK
Homework Equations
I1=I2+I3
Sum of the directed potential differences around any closed loop equals zero
The Attempt at a Solution
I worked out the total resistance which came out to be 4.5Ω [3 + 1/(1/6+1/2)]
But now I don't know which voltage to use to calculate the total current flow in the circuit. The confusion I have is the +18V, I don't understand where it comes from hence I am confused as to what amount of potential to use.. Thanks in advance.