3.182. In the circuit shown in Fig. 3,45 ine someces have emt z1=1.5V,g2=2.0V,g2=2.5V, and sources have emt equal to R1=10,R2=20,R2=30. The internal resistance of the nources are negligible. Find: (a) the current nowing through the resistance R1; (b) a potential diference AB between the points A and B. 3.183. Find the current nowing throngh the resistance R in the circult shown in Fig. 3.46. The internal resistances of the Fig. 3.45