/sci/ - Science & Math

What is voltage? I feel like I've never found an explanation of it that I've really understood. I don't care for the hydraulic analogy as I feel it leaves some important things out.

So what is voltage?

Why does it matter? (ie. Why do we express electric things in terms of voltage as opposed to current, what's the significance of the term?)

What's going on say when I overclock a computer component form 0.9V to 1.2V, is there more current? Is there more resistance? More charge? What's going on at an atomic level?

Can voltage be measured at a single point or does it always have to be relative to some other point? If so is there a standard for picking a point to measure the voltage relative to?