[Doug G]

Richard,

True. Body resistance is much more complicated than that of a wire, which is why I used a range from 50k thru 500k Ohm. Measuring the resistance of a tongue and you get as low as 1-5k Ohm, which explains the tingly sensation of licking a 9 Volt battery. Also helps explain why it is common to see medical folks use a "gel" when connecting the terminals of a defibrilator to a patient. No doubt that gel lowers the resistance to help increase the current through the chest. I still think if someone charged up these caps and held them in your hand - the result is most likely not dangerous, probably more dangerous is the burn you may get from accidentally shorting out the cap's terminals. Also notice in your first linked website, that DC is somewhat safer than low freq AC, but then as the freq of AC increases the skin effect takes place and becomes a bit safer. Good sites - I will use them with my students!!

For the Power equation, I stand corrected, PE = 1/2 C V^2 and yes that ends up as 20 J not Watts.