What current value typically produces a noticeable shock?

What current value typically produces a noticeable shock?

• A. 0.5 mA
• B. 1 mA
• C. 5 mA
• D. 10 mA

Answer: (B)

Perception threshold for electrical shock is about the smallest current people can typically feel as a tingling sensation when it passes through the body under normal conditions. About one milliampere through the hand at typical body conditions is commonly the minimum current that most people notice. Currents below this are usually not felt, while higher currents become more noticeable and can cause stronger sensations or involuntary muscle responses. So, among common values, one milliampere best represents the level at which a noticeable shock starts to occur, though the exact feel depends on skin condition, path through the body, and frequency.

Perception threshold for electrical shock is about the smallest current people can typically feel as a tingling sensation when it passes through the body under normal conditions. About one milliampere through the hand at typical body conditions is commonly the minimum current that most people notice. Currents below this are usually not felt, while higher currents become more noticeable and can cause stronger sensations or involuntary muscle responses. So, among common values, one milliampere best represents the level at which a noticeable shock starts to occur, though the exact feel depends on skin condition, path through the body, and frequency.