What is the current between points A and B?
The current I is unknown.
The voltage is 12V.
R1 = 3 Ohm
R2 = 6 Ohm
R3 = R4 = 4 Ohm
The Attempt at a Solution
Total resistance from both branches:
1/R = 1/(R_1+R_3) + 1/(R_2+R_4)
1/R = 1/7 + 1/10
R = 1/(1/7 + 1/10) = 1/17/70 = 70/17 Ohm
Total current from both branches:
I = U/R = 12/(70/17) = 72/35 A
Here I get lost. Even If I can calculate the current that goes through each resistance (which I don't know how to do.) I don't know how I should determine how much current that goes from point A to B and/or vice versa.