Question 4
In an electrical accident, what does the current through the body depend on?
The right answer is the one marked above.
The potential difference divided by the body’s resistance. I = V ÷ R applies to a person exactly as it applies to a wire. Both the voltage across the body and its own resistance decide the current.
This resolves the apparent paradox. The current is what does the damage, and the voltage is what produces it — so a high-voltage warning is a warning about the current it can drive.