base, emitter, collector
Three.
transitor
You do not have to; a simple power supply can use as few as 1 transistor. Supply a drawing, or explain your schematic.
Bardeen, Brattain, Shockley.
Transitor
Emitter, Base, Collector.
germanium or silicon crystal
Power neutral ground
by no of terminals.
Phoenix Sky Harbor International Airport has three passenger terminal buildings and Delta uses airlines uses Terminal 3.
You achieve three phase rectification with a three phase rectifier. There is one in the alternator of you car. You have three windings, connected delta, so there are three terminals. Three diodes are connected to these terminals, anodes towards the terminals, cathodes common and connected to the battery. Three more diodes (for a total of six) are connected to the terminals, cathodes towards the terminals, with the anodes common and connected to ground. At any one moment of time, one winding provides voltage to cause two diodes to conduct, charging the battery. As the alternator rotates, the windings and the diodes take turns, effectively providing a three phase AC to DC power source to the battery. If you look closely, there is another set of three, smaller, diodes connected as well, anodes towards the terminals. These diodes provide power for the integrated regulator, but the six main diodes are large and heatsinked into the frame of the alternator.
Definitely two. Possibly three.