Question

Which one of the following is the weakest force ?

• A. Electrostatic force
• B. Nuclear force
• C. Electromagnetic force
• D. Gravitational force

Answer 1

Answer: (D)

The gravitational force of attraction between two objects is given by
$F=\frac{G{m}_1{m}_2}{r^2}$
where $G$ the gravitational constant is equal to
$6.67\times 10^{-11}N{m}^{2}k{g}^{-2}$.
Compared to electrostatic, nuclear and electromagnetic, gravitational force is the weakest. Infact gravitational force is $10^{-43}$ times the electrical force.