@rcee123A lot will depend on genre, writing style, and how the author uses chapters. I can give examples of published (dead tree) authors with chapters as short as 2-3 pages or as long as 40-50 pages and both work very well for the style of novel.
It's worth noting that a lot of writing websites have minimum and maximum chapter rules for various reasons. A lot of early stories on SOL have short chapters not because that was what the author wanted, but because either the site or the earlier posting method (eg, usenet) required it.