What do magnetic poles do​

Well, the areas of a magnet that have magnetic strength are called “poles”. When you have more than one magnet, like (or same) poles repel, or push, each other. Opposite poles attract, or pull, each other.

Explanation:

the electrical  conductivity  of asolution  of an electrolyte is measured by determining the resistance of thesolution  between two flat or cylindrical electrodes separated by a fixed distance.

answer; 4 electrons;