I understand the difference between conv and elec flow. The part that is confusing, for someone learning to read schematics, is which is which on the paper?
I find many pictures showing a circuit with no notation as to the flow. And by no notation, let me include that spotting the diodes doesn't help me. I see resistors on one side or the other of something (see the LED flasher that is akin to "hello world" in programming") but I can't find a single one that truly describes step by step how things are playing out. This leads me to think it's down to me not understanding the notation they've used.
So, I know in a simple circuit the direction isn't of consequence; however, when diodes are present it is....isn't it?
Am I to just "know" (which I do) that the + and - on the power source are just printed in conventional and should really say - and +. Or, such as the case with the flasher, should I accept that the printings are intentional and the flow really goes the other way?
Last question: In order to have something concrete from which to extrapolate and compare, can someone please explain the need for the "other" resistor in the simple LED flasher and the order of events that occur in the current? I say "other" because if I say 1st or 2nd resistor it sounds like I'm implying a specific direction of flow, and at this point I haven't an ohm of a clue.
patience and thanks as always.
I find many pictures showing a circuit with no notation as to the flow. And by no notation, let me include that spotting the diodes doesn't help me. I see resistors on one side or the other of something (see the LED flasher that is akin to "hello world" in programming") but I can't find a single one that truly describes step by step how things are playing out. This leads me to think it's down to me not understanding the notation they've used.
So, I know in a simple circuit the direction isn't of consequence; however, when diodes are present it is....isn't it?
Am I to just "know" (which I do) that the + and - on the power source are just printed in conventional and should really say - and +. Or, such as the case with the flasher, should I accept that the printings are intentional and the flow really goes the other way?
Last question: In order to have something concrete from which to extrapolate and compare, can someone please explain the need for the "other" resistor in the simple LED flasher and the order of events that occur in the current? I say "other" because if I say 1st or 2nd resistor it sounds like I'm implying a specific direction of flow, and at this point I haven't an ohm of a clue.
patience and thanks as always.