The law of conservation of electric charge is one of the most fundamental principles in physics, stating that the total electric charge in an isolated system remains constant over time. This principle underpins everything from static electricity and household circuits to the behavior of subatomic particles in high-energy physics. Plus, electric charge cannot be created or destroyed; it can only be transferred from one object to another or transformed from one particle to another. Understanding how charge conservation works helps students and curious readers grasp why electrons move through wires, how batteries maintain voltage, and why the universe maintains a precise balance between positive and negative charges Simple, but easy to overlook..
The official docs gloss over this. That's a mistake.
What Is the Law of Conservation of Electric Charge?
At its core, the law of conservation of electric charge asserts that the net electric charge of any isolated system never changes. Because of that, if you start with a system containing a total charge of zero, it will remain zero no matter what interactions occur inside that system. If the system begins with a net positive charge, that same net positive charge will persist unless charge enters or leaves the system.
Worth pausing on this one.
Electric charge is a physical property of matter carried by subatomic particles. Protons carry a positive charge, electrons carry a negative charge, and neutrons carry no charge at all. When two objects interact—such as when you rub a balloon against your hair—electrons may move
People argue about this. Here's where I land on it Simple as that..