Question

The slope obtained in VGS  vs ID was 0.002. What is the value ofgm?

(a) 1

(b) 2

(c) 0.002

(d) 0

I had been asked this question during an online interview.

I'd like to ask this question from The FET Small-Signal Model topic in section Field-Effect Transistors of Electronic Devices & Circuits

Answer 1

The correct option is (c) 0.002

The explanation is: gm = change in drain current/ change in gate to source voltage                                       gm = slope of VGS  vs ID                                                                                                                                        gm = 0.002.