Do you know the blological connection of resistance and current to the

1.	Do you know the blological connection of resistance and current to the human body?
Answer» When the skin is dry, resistance of humna body is `~~10^(5) ohm` , and when the skin is wet, the body resistance is `~~ 1500 ohm`. Our supply voltage is 220 V. Therefore, when the skin is dry, current through the body, `I=V/R = 220/10^(5) A= 2.2 mA` and current through the wet body, `I= V/R = 220/1500 A = 147.0 mA`. As is known, a current of 100 mA to 3 A through the human body is fatal , current of 20 mA to 100 mA causes paralysis , current of 10 mA to 20 mA causes muscular disorder and a current of 2 mA through the body causes tingling. Hence touching a 220 V live wire, especially when the body is wet, may have serious consequneces.

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Do you know the blological connection of resistance and current to the human body?

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