I have an electrometer that measures current and ouputs a voltage. It has a range of operational amplifications, for example 1E-2 A/V to 1E-3 to .... to 1E-11 to 1E-12 A/V. I applied a voltage sweep at a slow rate (100 mHz) and measured the current response. The sample is expected to have some resistance and some capacitance. The applied voltage, the sample configuration, and the sweep rate are all identical for red and blue. The only difference is the electrometer amplification setting. The blue curve is the 1E-9 A/V setting, and the red curve is the 1E-10 A/V setting. There are two sweeps for each setting. Why are they so different? is my electrometer busted?