An electron(charge=-e) circulates around a helium nucleus(charge=+2e) in a helium atom. Which paricle exerts the larger force on the other?

F1=Force on nucleus by electron=k(-e)(+2e)|r^2F2=vice versa=k(-2e)(+e)|r^ So basically both exert same magnitude of force though the direction differs and the nature of force is attractive in both the cases!

Approved