The average resistivity of the human body (apart from surface resistance of the skin) is about (5.0
Question:
The average resistivity of the human body (apart from surface resistance of the skin) is about \(5.0 \Omega \cdot \mathrm{m}\). The conducting path between the right and left hands can be approximated as a cylinder \(1.6 \mathrm{~m}\) long and \(0.10 \mathrm{~m}\) in diameter. The skin resistance can be made negligible by soaking the hands in salt water.
a. What is the resistance between the hands if the skin resistance is negligible?
b. If skin resistance is negligible, what potential difference between the hands is needed for a lethal shock current of \(100 \mathrm{~mA}\) ? Your result shows that even small potential differences can produce dangerous currents when skin is damp.
Step by Step Answer:
College Physics A Strategic Approach
ISBN: 9780321907240
3rd Edition
Authors: Randall D. Knight, Brian Jones, Stuart Field