•• BIO Resistance and Current in the Human Finger The interior of the human body has an electrical resistivity of 0.15 N · m. (a) Estimate the resistance for current flowing the length of your index finger. (For this calculation, ignore the much higher resistivity of your skin.) (b) Your muscles will contract when they carry a current greater than 15 mA. What voltage is required to produce this cur- rent through your finger?

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20. BIO Resistance and Current in the Human Finger The interior of the
human body has an electrical resistivity of 0.15 N·m. (a) Estimate
the resistance for current flowing the length of your index finger.
(For this calculation, ignore the much higher resistivity of your
skin.) (b) Your muscles will contract when they carry a current
greater than 15 mA. What voltage is required to produce this cur-
rent through your finger?
Transcribed Image Text:20. BIO Resistance and Current in the Human Finger The interior of the human body has an electrical resistivity of 0.15 N·m. (a) Estimate the resistance for current flowing the length of your index finger. (For this calculation, ignore the much higher resistivity of your skin.) (b) Your muscles will contract when they carry a current greater than 15 mA. What voltage is required to produce this cur- rent through your finger?
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