Posted by John T on July 02, 2015 at 20:05:46 from (216.249.74.3):
In Reply to: Re: Coil Polarity posted by mj on July 02, 2015 at 19:50:37:
You state: "current 'naturally' flows from positive to negative"
When I studied electronics of solids and solid state physics (included Quantum Mechanics yukkkkkkkk lol) at Purdue University we learned that electrons, and what's referred to as "Conventional" Current, flow is + to -. HOWEVER when an electron is knocked out of its outer orbit (good conductors like copper have readily available free outer orbit electrons which is why they are indeed good conductors) A HOLE IS CREATED and the holes flow in the opposite direction and that was defined as "Electron" Current. The electrons flow one way while the voids/holes flow in the opposite. Conventional current + to - but Electron Current - to +.
The coil makers have a reason for labeling their coils with + and - you know. I've NEVER seen a coil with no labels or directions that say hook it as you like, it makes NO difference YEAH RIGHT
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