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Assume that a particular person's skin is found to have a resistance of 1 x 105 Ω when dry and 1400 Ω when wet. How much current will flow into the body on contact with a 120 V household AC outlet with wet and dry skin. Please round your answers to one decimal place.

User Earth
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1 Answer

3 votes

Answer:

current through dry = 1.2 mA

current through wet = 85.7 mA

Step-by-step explanation:

given data

resistance dry = 1 ×
10^(5) Ω

resistance wet = 1400 Ω

voltage applied = 120 V

to find out

current

solution

we get here current through dry skin I dry =
(V)/(R) ..................1

current =
(120)/(1*10^5) = 0.0012 A = 1.2 mA

and now we get

current through wet I wet =
(V)/(R) =
(120)/(1400) = 0.085714 A = 85.7 mA

User Keynan
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6.7k points