I can't ... recall any of [Robert Jordan's] chapters feeling particularly long or short. They just "were".
We have to capture our readers from word one and keep their interest to the very last word. If we've done that chapter ends are just a tiny blip on their consciousness as they keep on turning the pages.
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Chapters are containers for scenes, which are the real dramatic heavy lifters. Chapters are useful to us as writers, to organize and re-organize our scenes.
We can organize our scenes in several ways. One is to put scenes into "segments" to use a screenwriting term for several related scenes. A segment might be made up of the several parts of a chase as seen from the viewpoints of the chasers and the chased.
Another way to organize segments is if our novel covers several years in the life of our main character, as they go through different phases of their life. In one of my novels my MC joined the military and got several kinds of training, meeting and handling several challenges. That was one chapter. Next she spent an overseas tour, again several challenges. That was chapter two. As a civilian more challenges, and a third chapter. And so on.
But whatever works. James Patterson puts a single scene per chapter, making for dozens of chapters. Works for him.