Video narration
Is electricity just sitting inside a wire, waiting for you to let it out? Think about water in a hose. You ask: how much water passes one point each second? Electric current works the same way. Electricity isn't water; the comparison is about flow. The thing moving here is electric charge. Electric current is the movement of that charge through a path. A battery is not a tank of current. It provides the push that drives charge, while the wire gives it a route to follow. But the route has to loop back: a circuit must be complete. Break the path, and the flow stops. So current is not something stored in the wire, and it is not the battery itself. It is the rate at which charge moves through the complete path. Back to the hose: more charge passing a point each second means more current.