\displaystyle F = 50\cdot10^{-6}\cdot 1,6\cdot10^{-19}\cdot450\cdot10^3 = 3,6\cdot10^{-18} N
\displaystyle F_g = 9,1\cdot10^{-31}\cdot 9,82 = 8,9\cdot 10^{-30} N
