The current range most associated with incapacitating neural response in electrical exposure is which option?

The current range most associated with incapacitating neural response in electrical exposure is which option?

• A. 5 to 10 mA
• B. 10 to 14 mA
• C. 15 to 19 mA
• D. 20 to 25 mA

Answer: (C)

When current passes through the body, it interacts with nerves and muscles. At low currents you mainly feel a faint sensation; at higher currents you get stronger, more painful contractions. In the range of about 15 to 19 mA (for 60 Hz alternating current), the motor nerves can be driven into a sustained, tetanic contraction. This makes the muscles grip strongly and often prevents a person from letting go of the source, producing an incapacitating response. That’s why this range is the best match for an incapacitating neural effect. Currents lower than this tend to produce perceptible sensations or non-incapacitating contractions, while higher currents raise the risk of more severe effects, but the clear incapacitation signature aligns with roughly 15–19 mA.

When current passes through the body, it interacts with nerves and muscles. At low currents you mainly feel a faint sensation; at higher currents you get stronger, more painful contractions. In the range of about 15 to 19 mA (for 60 Hz alternating current), the motor nerves can be driven into a sustained, tetanic contraction. This makes the muscles grip strongly and often prevents a person from letting go of the source, producing an incapacitating response. That’s why this range is the best match for an incapacitating neural effect. Currents lower than this tend to produce perceptible sensations or non-incapacitating contractions, while higher currents raise the risk of more severe effects, but the clear incapacitation signature aligns with roughly 15–19 mA.