Question

which of the following is an effect of the electric force?
a. two positive charges repel each other.
b. two north poles repel each other.
c. two south poles are attracted to one another.
d. two negative charges are attracted to one another.

Explanation:

The electric force follows the rule that like charges repel each other. Positive charges are like charges. Options B, C, and D are related to magnetic poles (north - south poles) or magnetic force concepts (attraction/repulsion of magnetic poles), not electric force.

Answer:

A. Two positive charges repel each other.