Hello, I am trying to understand the physics of a PN junction in the forward bias mode( I feel like I need to understand that one before I can move on to understanding reverse-bias). I have read several resources( including my electronics book ), and it is difficult for me to understand. I feel like I understand most of it, but what I do not understand is how there is a total net current in ONE direction. From what I THINK I know, there is a voltage that propels holes from the P-side toward the N-side, and electrons from the N-side towards the P-side. The external voltage that is applied to the junction overcomes the barrier voltage that is produced by diffusion so that the charge carries can move into their opposite sides, but so again, how is there a net current in one direction if the holes and electrons recombine and cancel eachother out? Thank you for your time in reading this. I will appreciate any input regarding the topic you may have.