I'm not understanding how NPN transistors really work in this scenario. In this image, I
have highlighted what I understand to be the collector and emmiter. My understanding is
that power flows from the collector, TO the emitter right?
In this example, the base either turns the circuit on or off. I get that the circuit is
open when the transistor isn't being fed positive power. But, why is the emitter running
to ground? Shouldn't it be the other way, collecting and emitting to the LED?