Capacitor potential difference convention in the algebra-based intro physics classroom

I have long felt kind of “eh” about teaching about capacitors. Okay, so they store charge, that’s great. But I’ve come to realize that they, like so many subtopics in intro physics (okay, really, all of them), offer students a chance to make sure they understand one or more core principles. For capacitors, those are electric field, electric potential difference, and electric potential energy. However, they still have their sticky points, especially when it comes to conventions in textbook. … More Capacitor potential difference convention in the algebra-based intro physics classroom