Question

The drain of FET is analogous to BJT

(a) collector

(b) emitter

(c) base

(d) drain

I got this question in unit test.

Question is taken from A Generalized FET Amplifier topic in portion Field-Effect Transistors of Electronic Devices & Circuits

Answer 1

Right option is (a) collector

To explain: A common collector amplifier (also known as an emitter follower) is one of three basic single-stage bipolar junction transistor (BJT) amplifier, typically used as a voltage buffer.

In this circuit the base terminal of the transistor serves as the input, the emitter is the output, and the collector is common to both. The analogous field-effect transistor circuit is the common drain amplifier and the analogous tube circuit is the cathode follower.