1. The problem statement, all variables and given/known data Set voltage between 1. a-b; 2- b-c; 3 c-d 4. a-c; if voltage of battery is 12V and R_1=2000 ohms R_2=3000 ohms; R_3= 4000 ohms. (see attached file) 2. Relevant equations voltage=final voltage- innitial voltage resistors in series R_1,2=R_1+R_2 parallel resistors: R_1,2=(R_1*R_2)/(R_1+R_2) 3. The attempt at a solution I have no idea how to solve such problem. I can use Kirchhoff laws in circuits, I can use all equations I wrote in "relevant equations", I watched video how to set equivalent resistance of those resistors through "delta to ypsilon transformation" () but I have absolutely no idea how to apply my knowledge in such problem.