Compare the magnitudes of forces of interaction between two protons at the same distance. Gravitational force:
Fg=Gr2mp2. Electrical force:
Fe=kr2e2. Divide the electrical by the gravitational:
FgFe=Gmp2ke2= =(6.673⋅10−11)(1.673⋅10−27)2(1/(4πϵ0))(1.602⋅10−19)2=1.236⋅1036. The electrical force is 1036 times stronger than the gravitational one.
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