Problem 1 The circuit shown in Figure 1 contains a battery with emf S = 60.0 V without internal resistance and four resistors R1 = 3.00 (1. R2 = 6.00 0, R3 = 12.00 0, and R4 = 4.00 0. Find the current owing through each resistor. Problem 2 The circuit shown in Figure 2 contains three batteries with emf's 81 (unknown). 82 (unknown), and 83 = 20.0 V and internal resistances r1 = 1.00 [1, r2 = 1.00 (1, r3 = 1.00 (1, and resistors R1 = 4.00 0, R2 = 2.00 0, and R3 = 6.00 0. Find the emf's S1 and 82