According to coulomb's law, what effect does the separation distance have on the electric force? a. only in charging by induction can the electric force act at a distance. b. the objects must be in contact with one another for the electric force to affect them. c. the electric force is zero for very small distances, but increases for large distances. d. the electric force varies with the distance between the charges. the closer they are, the stronger the force. the farther apart they are, the weaker the force.

As per Coulomb's law of force we can say

here we can say

= magnitude of two charges

r = distance between two charges

so here we can say that force between two charges depends on

(i)product of charge of two point charges

(ii)distance between the two point charges

so here if we increase the distance force will decrease and vice versa.

So correct statement for the electrostatic force is given as

D. The electric force varies with the distance between the charges. The closer they are, the stronger the force. The farther apart they are, the weaker the force.

a

explanation:

no diagram was provided, but i'm guessing it's the one i've attached to my answer.

here, a mechanical force turns the rod.   this generates an electric current in the coil, which powers the bulb.