Answers (cont.)
nNow that you have 2 pieces of information at each resistor, you can use R=V/I to find potential differences
nAt the 4Ω resistor, 4Ω=V/2.5A
nso V1=10V
nAt the 6Ω resistor, 6Ω=V/2.5A
nSo…V2=15V