일반물리학 2 — Circuits: Problem 69

69 In Fig. 27-60, \(R_1 = 100 \Omega\), \(R_2 = 50 \Omega\), and the ideal batteries have emfs \(\mathcal{E}_1 = 6.0 \text{ V}\), \(\mathcal{E}_2 = 10 \text{ V}\), and \(\mathcal{E}_3 = 4.0 \text{ V}\). Find (a) the current in resistor 1, (b) the current in resistor 2, and (c) the potential difference between points \(a\) and \(b\).