Answered: maximum possible voltage without shock…

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter9: Current And Resistance

Section: Chapter Questions

Problem 77AP: Currents of approximately 0.06 A can be potentially fatal. Currents in that range can make the heart...

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Transcribed Image Text:A person notices a mild shock if the current along a path through the thumb and index finger exceeds 88 µA. Compare the maximum possible voltage without shock across the thumb and index finger with a dry-skin resistance of 3.8 x 10° Q and a wet-skin resistance of 1,900 2. dry skin V wet skin V

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formulas

using ohm's law . voltage V = I R

where I is the current . R is the resistance

therefore maximum voltage , V_max= I_max * R

therefore for dry skin . V_max(dry)= I_max * R ( dry)

for wet skin V_max(wet)= I_max * R ( wet)0.

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