Hi guys, complete beginner here. I've been reading about electricity the past couple of days and I am confused about some of the most basic concepts. I would greatly appreciate it if you guys could answer a few questions in a dumbed-down manner. I've been learning with kid-friendly analogies, so I'm modeling my questions in regard to them. Why do we need to create a circuit from a battery’s positive to negative terminal for current to move? If electricity just wants to flow from a higher voltage to a lower voltage, why can’t we connect the positive terminal to a different source of lower voltage, like a metal chair? In other words, why does the lower voltage source need to be the negative terminal of a battery? When I connect a wire to just the positive terminal of a battery, will that wire immediately "fill" with electrons, even though I am not completing any circuit? Based upon the higher voltage => lower voltage principle, I assume that some of the electrons from the battery will immediately move into the "empty space" of the wire right when I connect it to the positive terminal. Why are batteries described only in voltage? Doesn't the amperage matter too? I assume that electronics are very picky about the amount of amperage received. It's confusing to me how voltage for some electronics seem to be precisely defined, but there is no mention of amperage. For example, I always read about making sure you have 1.5V, 9V, etc batteries, but no mention about amperage. Thanks!