ElectroNewby,
I learned that electrons are going to the positive (+).
That's right. Electrons are negative charged, and are attracted to the positive terminal.
The electron leaves creates a "hole" which goes the other way.
That's false for a wire. There are so many negative charges (electrons) in a wire that a hole cannot possible exist without being neutralized immediately by a electron. Holes can exist in semiconductor material where electrons are relatively scarce.
So far so good. Electricity goes from - to +
What kind of electricity? Protons and positive ions do not.
Buuuuuut... I start college and BANG. Nope. Not good. Electricity goes from + to - by convention after an old war on the way it goes.
Do not confuse a mathematical method with the real direction of a charge carrier.
I rather know the real physic way of how it is going.
And you easily can, but don't apply that method while doing calculations.
Am I going to be lost in my course if I keep thinking of the "real sens" it goes ?
You will be confused, not lost. See below.
I'd like to see your opinions on this convention, and any other.
Read on.
I think it's not going to be a big deal in the end of the day!
Not if you do it right. Otherwise you will be wrapped around the axle.
Like so many nubes, you start out by worrying about what the polarity of the charge carrier is. Intuitively that makes sense, but it really leads to confusion. Most of the time you don't care what the real physical direction of the charge carrier is anyway. So to do it right, you stick to a standard mathematical convention. You mathematically assume that the charge carriers are of a positive polarity, flow out of the positive terminal of voltage source, and return to the negative terminal. You make all your calculations assuming that positrons or protons are the charge carriers. This is how the electrical equipment and product manufacturers mark their products. I am referring to ammeters and diodes. The arrow on the diode points in the direction of positive charge carriers, and the ammeter shows a forward positive deflection on the + and - terminals. To continue, you do your calculations and receive a quantity of amps for a circuit. That is your mathematical answer, and usually you are finished with the problem. But if it is really necessary to know the physical direction, then you look at the charge carrier's polarity and reverse the direction if the charge carrier is negative. So by not worrying about what the polarity of the charge carrier is at the beginning, the problem simply becomes a plug 'n chug exercise.
Ratch