Today I learnt that pure water is not conductive and than tap water is a poor conductor at 120V which I believe is the american standard... What about Europe's 230V ? Would he still have gone in the water to unplug the piano if he was in Europe ?
Luckily we have equations for this! Assume that the water has a fixed resistance of R. You have increased the Voltage V about double. As a result of V=IR, the I, or current flow, will be doubled. Which in this case is probably a moderate tingle since R is so high. For reference, the heart muscles start getting involuntary twitches around 100mA, and at 200mA causes cardiac arrest. And the standard units of Voltage, Am…
240v will give you more distance to react between the tingle radius and the kill radius