What criterion determines shock intensity?

The intensity of an electric shock is primarily determined by the amount of current flowing through the body when a person comes into contact with an electrical source. Current, measured in amperes (amps), is the flow of electric charge and is a key factor in determining the potential harmful effects of an electric shock. Higher current levels can cause more severe physiological effects, including cardiac arrest or muscle contractions, which can lead to injury or death.

On the other hand, while voltage is the potential that drives the current, it does not directly determine the shock intensity without considering the resistance of the body. Resistance plays a role in limiting the amount of current that can flow, but it is the current itself that dictates the actual intensity of the shock experienced. The duration of exposure does also influence the overall effect of the shock, but it is the intensity of the current at the moment of contact that is vital to understand when assessing shock intensity.