1. The problem statement, all variables and given/known data The circuit is shown as above. If ε = 3 volt and each resistor has 2 ohm resistance, then what's the potential difference between point B and point D ? A. 4 B. 3 C. 2 D. 1 E. 0 2. Relevant equations V = I R R series = R1 + R2 + .. 1/ R parallel = 1/R1 + 1/R2 + ... 3. The attempt at a solution The circuit is very weird. I don't even know how to start.