Re: electrocution by car battery



> i thought it's the current that kills not the voltage.
> the voltage is just to get past the skin resistance to
> your heart. I read somewhere if the current at about 0.030 amp
> would even stop your heart.

No, it's the power that kills, which is the
voltage squared divided by the resistance.

So, if your skin resistance is a Megohm,
you only get 120^2/1 Meg = 14 milliwatts which is not much.

But, if your hands are wet and the skin resistance is only 50K or so,
you get E^2/R =120^2/50K = 288 milliwatts, which might be dangerous.

-Bill

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