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The total number of electrons in the hum...

The total number of electrons in the human body is typically in the order of `10^(28)` . Suppose due to some reason you and your friend lost `1%` of this number of electrons. Calculate the electrostatic force between you and your friend separated at a distance of 1m. Compare this with your weight . Assume mass of each person is 60 kg and use point charge approximation.

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The correct Answer is:
Total no. of electrons in the human body =`10^(28)` Total no of electrons in me and my friend `=10^(28)xx1v`
`10^(28)xx1v=10^(28)xx(1)/(100)=10^(28)xx10^(-2)=10^(26)` Distance =1m
`F=(1)/(4piepsi_(0)).(10^(26)xx10^(26))/(1)=9xx10^(9)xx10^(52)`
`F=9xx10^(61)N`
mass of the person m=60 kg, weight =?
Weight `=mgxx60xx9.8=588N`.
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