>>11599615as the electrons as pushed by the EM field in the conductor, they also push on each other because theyre charged particles. think of a crowded doorway, only so many people can fit through it at once because two people cant occupy the same space
electrons scatter in all directions inside of a conductor, so some are going to try to go along very restrictive paths (some even try to jump out of the conductor) but the paths of less resistance are able to pass more electrons through per unit time. since electrons push against each other, they're naturally inclined towards areas where there are fewer electrons, and away from areas of more electrons.
this explains why electrons dont "always follow the path of least resistence", but instead a proportional amount of electrons follow each path based on that paths conductivity, for example if a path A is ten times more conductive than path B, then ten times as many electrons follow path A, but some still follow path B.
