Discussion in 'Homework Help' started by matttrix, Mar 11, 2009.
Find I1, if R4=2Ω and R2=R3=8Ω
Can you post your efforts at solving the problem?
A 9 ohm, an 18 ohm, and a 6 ohm (2+8||8) are all in parallel with the 3 ohm through which I1 flows. I realize that the 3 ohm (through which I1 flows) is in parallel to this combination of the other three resistors. But from here am lost.
As you said 18,6 and 9 are parallel and their equivalent combination is 3 ohm.
By current division rule
I1 = Is x (3/6)