Electronics > Beginners
Where to find beginner projects
darrellg:
--- Quote from: rstofer on February 12, 2019, 09:28:35 pm ---I ordered a copy of Forrest Mims; "Getting Started in Electronics" and it's a really good book. It covers all the usual topics like the nature of electricity, current flow, voltage and so on. I really wish it didn't describe current in terms of electron flow (pages 20 & 47) but that's just a preference. I understand why it was done but these days we have pretty well settled on 'current' flowing from + to -. Maybe it is confusing, maybe not...
--- End quote ---
It really depends on where you went to school. I was taught electron flow, because the flow of the absence of something is stupid. In reality, it works either way, as long as you are consistent. However, it is certainly NOT settled.
james_s:
I think it's useful to have a basic understanding that electrons actually flow from negative to positive but that conventional flow is used throughout most of EE and all the schematic symbols are drawn in this way. I don't think it's too confusing to remember that technically everything is backwards but from a practical standpoint we can pretend flow is from positive to negative and things will make sense.
I had what I think was the same Mims book when I was a kid except the cover was green. It was quite good and I got a lot of use out of it. One thing I remember having difficulty with at the time though was figuring out the pinout of ICs. Seems like the book never actually showed the order of the pins which start at the lower left corner and count up going counter-clockwise around the IC. Maybe it's in the book and I just didn't see it, I was only about 10 years old at the time.
Wimberleytech:
--- Quote from: darrellg on February 12, 2019, 09:51:30 pm ---
--- Quote from: rstofer on February 12, 2019, 09:28:35 pm ---I ordered a copy of Forrest Mims; "Getting Started in Electronics" and it's a really good book. It covers all the usual topics like the nature of electricity, current flow, voltage and so on. I really wish it didn't describe current in terms of electron flow (pages 20 & 47) but that's just a preference. I understand why it was done but these days we have pretty well settled on 'current' flowing from + to -. Maybe it is confusing, maybe not...
--- End quote ---
It really depends on where you went to school. I was taught electron flow, because the flow of the absence of something is stupid. In reality, it works either way, as long as you are consistent. However, it is certainly NOT settled.
--- End quote ---
It is settled.
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