The ratio of the electric force between two electrons to the gravitational force between them is of the order of

The gravitational force between two bodies is

The gravitational force between two bodies is :

If F_c is the Coulomb force between two electrons and Fg is the gravitional force between them, then

Is the electric force between two electrons greater than the gravitaonal force between them ? If so, by what factor ?

Is the Coulomb force between two electrons greater than gravitational force between them? If so by what factor?

On doubling the distance between two masses the gravitational force between them will

The ratio of electric force between two electrons to two protons separated by the same distance in air is .