Hi all! I am running an experiment in which I have rigged up a circuit to anodise aluminium foil. Running it with a constant voltage of ~40V I have found that rusty wires, poor connections (I am using alligator clips) and even using stackable banana plugs causes erratic (and high) currents which ruins my samples. With my limited knowledge in circuitry, all of these things might be modeled as resistors restricting the flow of electrons; however if they merely acted as resistors I cannot see why this should cause erratic current behaviour and shouldn't they reduce the current rather than increase it? Is it possible that they act as capacitors, "storing" the electrons and then releasing them sporadically causing current peaks? While I'm at it, would anyone have any idea about how to symbolically represent an electrolytic bath in a circuit schematic? (Would I represent the anode/electrolytic bath/cathode assembly as a capacitor in itself?) Thank you all in advance.