I had a thought the other day about electric field (and electric field lines) and how they show repulsion/attraction between corresponding charges respectivelly. Some places I’ve read talk about how the “lines” contract length wise (attraction) and apply lateral pressure transversally (repulsion). But my confusion (and where my question comes from) is if electric field lines are thought to “contract” then why do they radiate outwards from their charge?
I understand this can be thought of as just an analogy, but what would help close this gap for this analogy? Thanks!