TIL means "Today I Learned". Translated: your post made me look up more about the effects of electric shock on the body. Your 1-2kOhm figure seemed very low, until I researched it. Now I know.
I was also under the impression that 1F = 1C in all cases, which explains my being off by a factor of 600 on the time thing
Ah, TIL what TIL means :)
The definition of farad is coulomb per volt, as its actually a quadruple derived unit, as:
1 farad = 1 coulomb per volt
1 volt = 1 (joule)/(ampere-second) : a volt is defined as the electric potential over which movement of one coulomb requires one joule.
1 ampere = 1 coulomb / second
1 joule = 1 newton-meter
1 newton = 1 kg-m/s^2
So 1 farad = C/V = C*A*s / J = C*A*s / N*m = (C*s)^2 / (kg*m^2).
The last one is in MKS fundamental units, you could make it more fundamental by making C in units of electron charge, mass in units of inverse seconds, and meters in units of seconds as such:
1 C = 6.25x10^18 e
1 kg = 9x10^16 J = ~1.5x10^50 inverse seconds
1m = 1/c = ~3.3x10^-9 s
So now its
1 Farad = 2.6x10^4 electron-charge squared * seconds cubed. Now that's fundamental. (I had an annoying prof. Once who wanted an entire problem set done with the only units being truly fundamental universal ones, like seconds. I'm sure one could define electron charge using only fundamental constants like the josephson constant, which is the inverse of h/2e to inter-relate magnetic quanta and seconds, so with a unit flux device, one volt is 4.8x10^14 inverse seconds, as that quantization is what inter-relates current and voltage in fundamental units, but I have to go back to work now)
So a farad is technically a measure of energy required to separate a certain quantity of charge.
