Figure 1.1 and 1.2 show the capacitive current for two different electrodes. Discuss the factors give rise to the differences seen for the two electrodes. Figure 1.1: Cottrell experiment in KCI solution with a Pt disc electrode (d = 2 mm) Capacitive Current 0- KCI 20 40 60 80 100 120 Time/s Current/uA Figure 1.2: Cottrell experiment in KCI solution with a IS-C (carbon disc electrode with d = 3 mm) Capacitive Current 0.00- -0.05- -0.10- -0.15- -0.20 -0.25- -0.30- ItalSens IS-C 1 20 40 60 80 100 120 Timels Current/uA