ok lets see if i can write this so that it makes sense.
ok i understand that depending on who you ask the flow can ether be from positive to negative, or ( the proper way, from my understanding.) negative to positive.
but that brings me to the question of if it is negative to positive then how dose it flow through a diode? EG: you have the negative of the diode to the negative and positive to positive, but the diode is suppose to stop that flow in that direction.
or am i over thinking it.
Confusion arises because there are two charge carriers in the universe, positive and negative. I will explain how to calculate without confusion. First of all, current does not flow. Current means charge flow and current flow means the ridiculous "charge flow flow". Everyone should say charge flow, current exists, or current is present to be correct, but not current flow.
The so called "conventional current" is really a mathematical convention. It assumes that mathematically, all charge carriers are positrons, not electrons. That means that a battery mathematically emits positive charge carriers from its pos terminal and receives positive charge carriers at its neg terminal. Do all your calculations based on that proposition and find an answer. If it is really necessary to know the actual physical direction of the current, then reverse the calculated current if the charge carriers are negative, or keep the same direction if the charge carriers are positive, like semiconductor holes are. That's all there is to it. You will really get wrapped around the axle if you first ask, "What is the polarity of the charge carriers?" "Are they positive or negative?" Most of the time it is not necessary to know. Do your analysis using the mathematical convention method.
Voltmeters and ammeters are marked according to the mathematical convention. A positive voltage on the pos terminal causes a meter deflection in the forward direction. Semiconductor manufacturers also mark their components using the mathematical convention. A positive voltage on the diode arrow allows conduction to occur.
Ask if you have any questions.
Ratch