Timeline for Is 20 watts of electricity dangerous?
Current License: CC BY-SA 3.0
11 events
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| Aug 28, 2017 at 4:54 | comment | added | Chupacabras | @BorisDeletic if your source is limited to 1mA and your skin has 1000 ohm resistance, than voltage of your source will drop to 1V immediately after you apply that source to your skin. | |
| May 9, 2016 at 21:41 | history | edited | Transistor | CC BY-SA 3.0 |
Undid stephandz's edit. The word "man" is being quoted verbatim from the original study. It doesn't say "person". It may also mean "man" at that current!
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| May 9, 2016 at 21:24 | comment | added | rdtsc | The problem with that course of logic Boris, is assuming there is no capacitance on the HV wiring and it is instantly current-limited. Most sources of HV are either high-power, or filtered using relatively large capacitances. The latter implies that even though the maximum sustained current would be 20mA, the initial "spark" could be much more, and still incite arrhythmia or paralysis. There are many factors to consider when it comes to safety and high voltages. | |
| May 9, 2016 at 20:46 | history | edited | stefandz | CC BY-SA 3.0 |
men and women are both affected by electric shocks!
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| May 26, 2015 at 6:46 | comment | added | Boris Deletic | @tcrosley Ok, my question was answered a while ago, but I'd like to explain what I clearly said to you previously. You say that at 1000v, the current = V/R. Let's say, that your skin is wet and has a resistance of 1k Ohm. Then the current would be 1000/1000 = 1A, and your dead. I understand that. BUT. If the source of electricity only supplies a maximum of 1mA at 1000v, then it is clearly not possible to supply 1A at 1000v, no matter what the resistance of the circuit/ body is. In my original question and comment to you, I did state the maximum current that could be drawn. | |
| Mar 7, 2015 at 10:21 | comment | added | tcrosley | @BorisDeletic Please re-read the first couple paragraphs of my answer. You're still trying to specify both the current and voltage at the same time -- you can't do that. The current is all based on the voltage divided by the skin resistance. If you are telling me a voltage and power (which indirectly tells me the current), then you are arbitrary assuming a specific skin resistance. That's only useful if you are trying to determine what skin resistance would be needed to pass 20 mA at 120V for example. That's a fairly useless question. | |
| Mar 7, 2015 at 10:01 | comment | added | Boris Deletic | Thank you, but I beg to differ concerning one part of what you said. you said that if you were to make contact with 120V at 1 Kilo Ohm of resistance, then you would recieve 120mA which would kill you. But what if, like in my examples above, the total power provided by this 120v source is 2.4 watts. Then the total possible current could only be 20mA, it wouldnt be possible for you to be zapped with 20A because there isnt that much current provided by the source. | |
| Mar 7, 2015 at 9:55 | history | edited | tcrosley | CC BY-SA 3.0 |
added 177 characters in body
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| Mar 7, 2015 at 9:40 | history | edited | tcrosley | CC BY-SA 3.0 |
added 335 characters in body
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| Mar 7, 2015 at 9:36 | comment | added | Andy aka | A shocking answer +1 | |
| Mar 7, 2015 at 9:29 | history | answered | tcrosley | CC BY-SA 3.0 |