Exactly. I know enough physics and mathematics to know that what is used to create designs is laughably simplistic and oftentimes incorrect knowledge. But it doesn't matter, we are not pushing physics with the designs. We just want enough heuristics to be able to build something that works.
Electronics engineers don't go wielding equations to build circuits (well, except maybe Ohm's Law) but rather rely on intuitive models they have in their brains of what components do when put in a specific place in the circuits.
This is necessary shortcut because otherwise even simple circuit can become extremely difficult to understand if you start from first principles.
Electronics engineers don't go wielding equations to build circuits (well, except maybe Ohm's Law) but rather rely on intuitive models they have in their brains of what components do when put in a specific place in the circuits.
This is necessary shortcut because otherwise even simple circuit can become extremely difficult to understand if you start from first principles.