We compared two cases: single phase delivery (call the wasted power P1), and 2-phase delivery (P2). We found the ratio P1/P2 = 4. Here, you will calculate the ratio P1/P2 for an unbalanced load. But now the neutral wire now carries current. Find the ratio P1/P2 when load 1 = 3.1 A, load 2 = 7.4 A, and each delivery wire has a resistance of 0.25 ohm.