Which is a primary factor in electric shock severity?

The severity of an electric shock is significantly influenced by the current's strength. When a person encounters an electric current, the amount of current (measured in amperes) that passes through the body plays a crucial role in determining the level of injury sustained. Higher current levels can cause more serious damage to internal organs, nervous system, and muscles, leading potentially to fatalities.

This understanding is rooted in the relationship between current strength and physiological effects; as the current increases, it can lead to muscle contractions, respiratory paralysis, or even cardiac arrest. Therefore, a much stronger current has a substantially higher potential to cause harm compared to weaker currents.

While the other factors such as the body's weight, the current's frequency, and the environment of exposure can influence the experience of an electric shock, they do not affect the fundamental aspect of how current strength directly dictates the intensity of the shock and resulting injuries. The current strength is the primary determinant of the electrical energy that is actually causing the effect in the body.