22/03/2025
They do say resistance is the opposition to the flow of current, but it is very funny that without resistance between two points, there will be no potential difference between them and, therefore, no current flow (only a short-circuited current).
It is like when you apply force to a vacuum (emptiness); you know there's nothing there to push against, so you just fall (and that falling is exactly like a short-circuited current—you know, both are disasters).
You know, voltage is like pressure in a pumping fluid. With no pressure, there is no movement (or just constant movement, which later stops along the run due to the boundary layer effect, i.e., viscosity). When pressure is applied, the fluid rushes to the other side.
You know, pressure is like pulling a rope attached to a box. The box moves toward you if you have enough energy—that is, if you apply enough force to pull it. It's the same when you push; it's just that the box moves away from you in this case.
I think this is the same reason they say, "A static fluid has no viscosity"—you know, no internal friction or resistance to movement, as there is already no movement. Funny, hahaha!
