Calculate the ratio of electric and gravitational force between two protons. Charge of each proton is `1.6 xx 10^(-19)C`, mass is `1.672 xx 10^(-27)kg and G= 6.67 xx 10^(-11) Nm^(2) kg^(-2)`.

Explanation

The electric force Fe `(e^2)/(4piepsilon_(0)r^2)`
The gravitational force `Fg = (Gm^2)/r^2`
`:. (Fe)/(Fg)=1/(4piepsilon_(0))xxe^2/(m^2G) = 9xx10^(9)xx`
`((1.6xx10^(-19))^2)/((9.1xx10^(-31))xx^(2) xx 6.67xx 10^(-11)) = 4.17 xx10^(42)`