A common household circuit rated at 15 amps can carry approximately how many times the current needed to produce heart fibrillation?

The correct answer highlights the significant difference between the current levels that household circuits can handle compared to the current that can lead to life-threatening conditions like heart fibrillation. A common household circuit rated at 15 amps can indeed carry approximately 200 times the current necessary to induce heart fibrillation.

To provide context, heart fibrillation can occur at currents as low as 0.1 to 0.3 amps (100 to 300 milliamps). When you consider the capability of a 15 amp circuit, it becomes evident how dangerous electricity can be. The human body’s resistance can vary, and even a small amount of electrical current can disrupt heart rhythms.

Therefore, understanding the actual thresholds of electrical safety is crucial. It emphasizes the importance of taking necessary precautions when working with or around electrical systems. The ability to carry such a high amount of current compared to what can cause fibrillation serves as a powerful reminder of the risks associated with electrical exposure.