4. Explain what happens in the circuit shown in figure 2 once the switch is closed. The capacitor is initially.' uncharged. [5 points] 3. Find the emfs &, and & in the circuit shown in figure 1. (5 points) 1.00 0 20.0 V 6.00 0 1.00 A 1.00 0 & 4.00 0 a + b 2.00 A 1.00 02 82 2.00 02 Figure 1