Hey, So I've taken a course learning theory to mosfets, Jfets, transistors etc. Recently we did an amplifier project with a summing component as a final project. I chose which component pretty randomly. I'm a little misled as to which component is better in certain circumstances. BJT's are higher current devices, this I know. Mosfet's have the perk of the enhancement region. I'm just curious what goes into the selection when faced with a design proposition. I suppose there are also just the applications of switching, amplification etc. as a second to my previous question, how after you select a component would you determine which bias configuration you would use? I know voltage divider circuits are most common, but is there specific times others are used? The only difference I see is trying to keep the number of required sources down.