At current flows of _______ or greater, the danger of death or severe damage increases tremendously.

• A. 100 milliamps
• B. 1 amp
• C. 10 milliamps
• D. 1 milliamp

Answer: (C)

Current through the body is what causes harm, not the voltage alone. As the current climbs into the range where a strong shock is felt, the muscles can seize up to the point you can’t release the conductor. That loss of grip keeps you connected longer, increasing exposure and the likelihood of serious injury or death, especially because heart rhythm and breathing can be affected by current. This is the level at which danger rises sharply for typical mains–frequency exposures, so once you reach that threshold, the risk becomes much greater than at lighter shocks. Below that, you might feel something but survive with little lasting effect; well above it, the danger is even more pronounced.