A lot, depending on the type of application and the strength of the body.
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I have never heard of any electric fence being more than ten thousand volts, however the voltage is not important --- it's the amperage. Amps are a measure of current / conductivity, so a high-amp jolt will kill even at low voltage. This is how tasers can be lethal. This Concentration Camp fences are also a continuous-current fence which is never done in normal applications. The current is pulsed on-and-off to ensure that you are not lethally shocked; since this is not the case with the Concentration Camp fences, any inmate who touched the fence would form a capacitator, a pathway, through the fence and thereby be unable to let go of the fence. I am not exactly sure of the biology chemistry and physics involved but for whatever reason electric currents cause paralysis, and a really high voltage (powerful) current would probably hold you in place by force. Again don't quote me on that last part, but I think that you can actually suspend someone in mid-air with an electric current (until they boil and explode of course). Yeah, I would say 10,000 volts. But those sadistic freaks might have used more juice, even if it would be economically unsound to do so. 1/2 amps is enough to kill, so they had to be at least 0.5 amps.
69.5 percent
Current can kill you for several reasons...The power dissipated can be so high that you get burned.The shock can cause you to jerk, either striking somthing and physically hurting yourself, or causing you to fall off something.The current flow can cause muscles to spasm, potentially stopping your heart or your breathing.The current flow can damage things, such as the SA node in the heart, causing the heart to go into Ventricular Fibrillation, even after the current is removed.etc.
current is the killer not volts, you can have thousands of volts but with out flow (current) the danger is minimal, but if you have voltage its very easy to induce current so be careful and let a professional take care of it if you do not know what you are doing.
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