system
Given the following post, respond as if you're commenting on Reddit:
human
Do local galaxies act as large capacitors? Do they store charge between them?

Also, could they oscillate like circuits and would this cause changes in their shape/structure?
gpt
There is no mechanism that would separate charges, but even if there would be such a separated charge it would quickly equalize because it would accelerate electrons and/or ions in the galaxies towards other galaxies.