Context: There are two types of transistors, which have slight differences in how they are used in a circuit. A bipolar transistor has terminals labeled base, collector, and emitter. A small current at the base terminal (that is, flowing between the base and the emitter) can control or switch a much larger current between the collector and emitter terminals. For a field-effect transistor, the terminals are labeled gate, source, and drain, and a voltage at the gate can control a current between source and drain.

Question: How many types of transistors are there?
Answer: two

Question: What are the components of a bipolar transistor?
Answer: base, collector, and emitter

Question: What controls the large current between the collector and emitter?
Answer: A small current at the base terminal

Question: What are the components of a field-effect transistor?
Answer: gate, source, and drain

Question: In a field-effect transistor, what controls the current between the source and drain?
Answer: a voltage at the gate

Question: Why would someone use a bipolar transistor instead of a field-effect transistor?
Answer: Unanswerable

Question: What is the most common kind of transistor?
Answer: Unanswerable

Question: What controls the voltage at the gate of a field-effect transistor?
Answer: Unanswerable

Question: Where is the collector terminal located?
Answer: Unanswerable

Question: Where is the gate terminal located?
Answer: Unanswerable