1. The problem statement, all variables and given/known data 2. Relevant equations Kirchhoff's laws and I = V/R 3. The attempt at a solution I asked a question recently about a Kirchhoff's law problem and I received a lot of great help and I feel I better understand it. Or so I thought. This is my attempt at the problem. I don't know if this is right or wrong but it doesn't make sense that the current is 0 for I2, I3, and I4. Maybe someone could shed some light one what I've done wrong.