4. Using your graphs, show how to get the time constant from the graph. Note that there are two full charge discharge cycles for each graph. Therefore, determine the time constant twice, and report the average value. [graph, charging = (t, + to)/2 = (3 + 1.85 )/2 =2.425 s [graph, discharging = (1 1 + 12)/2 = (5.75 +5.45)/2 =5.6s