How does the magnitude of current affect the severity of an electrical shock?

• A. The magnitude determines the extent of damage caused.
• B. The duration of the current determines the damage more than magnitude.
• C. The path through the body is the only factor.
• D. The frequency of the current is the main factor.

Answer: (A)

The amount of current flowing through the body largely determines how severe an electrical shock will be. When more current passes through the tissues, more energy is delivered to nerves, muscles, and organs, leading to stronger nerve and muscle stimulation, greater heating, and a higher risk of dangerous heart rhythms or burns. At very low currents you might only feel a tingling, but as current increases you can experience painful shocks, muscle contractions that make it hard to let go, and, with higher currents, serious injuries such as ventricular fibrillation or deep burns. The path the current takes and how long it flows also matter, but the magnitude is the main factor because it directly controls the amount of energy the body absorbs in a given moment. The other statements misplace the emphasis: duration, path, or frequency may influence outcomes, but they do not determine severity as directly as how much current is passing through the body.