What are non-contact forces ?

Explanation

The forces experienced by bodies even without being physically touched, are called the non-contact forces or the forces at a distance. The general characteristics of non contact forces:
(i) The gravitational force is always of attractive nature, while the electrostatic force and the magnetic force can be either alternative or repulsive.
(ii) The magnitude of non-contact forces on the two bodies depends on the distance of separation between them. It decreases with the increase in separation and increases as the separation decreases.