What is the value of current that can cause fibrillation of the heart?

The value of current that can cause fibrillation of the heart is typically around 0.1 amperes (or 100 milliamperes), but in the context of lower values presented in the answer choices, the closest answer is indeed 1/10 amp, which equals 0.1 ampere. This level of current flowing through the body can disrupt the normal electrical signals in the heart and potentially lead to ventricular fibrillation, a serious and often fatal condition.

Understanding the dangers of electrical shock and the thresholds for causing harm, including fibrillation, is essential for linemen who work with high-voltage systems. It is important to recognize that even lower currents, like those presented in the other options, can also be dangerous under certain conditions, but the specific threshold for inducing fibrillation generally aligns with 1/10 amp.