For the circuit shown in the figure, the capacitors are all initially uncharged, the connecting leads have no resistance, the battery has no appreciable internal resistance, and the switch S is originally open. (a) Just after closing the switch S, what is the current in the 15.0-42,5.0-2,10.0-02, and 20.0-52,resistor? (b) After the switch S has been closed for a very long time, 1. what is the potential difference across the 28.0-F capacitor? 2. what is the current going through the 15.0-52,5.0-52,10.0-42, and 20.0-42,resistor? 3. What is the charge stored by the 18 F and 28.0-F capacitors? 4. What is the energy stored by the 18 F and 28.0-uF capacitors? 50.0 V 10.002 www 18.0 F 20.00 5,00 2 www 15.00 28.0 F