So I'm trying to (re-)learn electromagnetism and watching some walter lewin lecture videos
In one of them he proposes that the resistance between a clothed human and the earth is largely dictated by the soles of the shoe.
So he gives this about 4*10^9 ohm or half that if you stand on two legs.
Then says he touches a van der graaf generator at 2*10^5 V
so the current flowing through him is according to Ohm's law about
1000 micro coloumbs per second, although the van der graaf only has about 10 micro coloumbs of charge on it.
So he says this resistance of your shoes is WAY TOO LOW
even though when I google this you need to get to the order of 100s of milli amperes (and more deadly if it passes arm to arm) to die.
So what was he on about?
In one of them he proposes that the resistance between a clothed human and the earth is largely dictated by the soles of the shoe.
So he gives this about 4*10^9 ohm or half that if you stand on two legs.
Then says he touches a van der graaf generator at 2*10^5 V
so the current flowing through him is according to Ohm's law about
1000 micro coloumbs per second, although the van der graaf only has about 10 micro coloumbs of charge on it.
So he says this resistance of your shoes is WAY TOO LOW
even though when I google this you need to get to the order of 100s of milli amperes (and more deadly if it passes arm to arm) to die.
So what was he on about?
