Question

The current iD

(a) Depends linearly on  VOV in the saturation region

(b) Depends on the square of  VOV in the saturation region

(c) Depends inversely on VOV in the triode region

(d) None of the mentioned

I had been asked this question during an interview.

Question is taken from MOSFETs Current-Voltage Characterisitcs topic in division MOS Field Effect Transistors (MOSFETs) of Electronic Devices & Circuits

Answer 1

The correct choice is (b) Depends on the square of  VOV in the saturation region

The explanation is: Use the standard mathematical expressions for i0 in different regions.