I learned the position of reference electrode is important as it is related to solution resistance and it should be as close to the working electrode as possible to reduce this resistance.

However, when we conduct a electrochemical experiment, we don't apply current directly to the reference electrode. It works just as a reading tool to measure the potential of the working electrode which means no matter how the uncompensated resistance is high, the current actually applied to the reference electrode is very small(small enough to the extent of leakage current to read potential difference between reference and working electrode, ~pico ampere for these day's potentiostats) so the iR drop will be ignored.

Thus, I think it is not important whether the position of the reference electrode is close to the working electrode or not... What am I missing?

Please share your any knowledge or experience for this !

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