Question

The width of the contact of each wire with your skin is 1.00 cm and the...

The width of the contact of each wire with your skin is 1.00 cm and the thickness of the conducting layer of your skin is 0.026 mm. Assuming that these two dimensions define an area through which the current flows, calculate the resistivity of your skin.

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Answer #1

L = thickness of conducting layer of skin = 0.026 mm = 0.026 x 10-3 m

d = diameter = 1 cm = 0.01 m

A = area = (0.25) d2 = (0.25) (3.14) (0.01)2 = 7.85 x 10-5 m2

resistivity is given as

= RA/L = R (7.85 x 10-5 )/(0.026 x 10-3)

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