PHYS112 Lecture 5: Jan. 12

An 8 μFarad capacitor is fully charged by a 24 V batery before it is connected to a 12 Ω resistor wjere it discharges. What is the charge on the capacitor after 56 μseconds?

Battery is 24 V and all resistances (8, 12, 24) are inkΩ
1. When the circuit above is first connected the current from thebattery is 1.875 mA. Five second later the current from the batteryis 1.5 mA. What is inside the box shown in the circuit? How did youdetermine this?


2. What will the potential difference(s) be across the element(s)in the box five seconds after the battery is connected? Explainfully.