Question

In the transfer characteristics of a MOSFET, the threshold voltage is the measure of the

(a) minimum voltage to induce a n-channel/p-channel for conduction

(b) minimum voltage till which temperature is constant

(c) minimum voltage to turn off the device

(d) none of the above mentioned is true

This question was posed to me during an interview.

My question is taken from MOSFETs-1 in section Power Electronics Devices of Power Electronics

Answer 1

Right choice is (a) minimum voltage to induce a n-channel/p-channel for conduction

Easiest explanation: It is the minimum voltage to induce a n-channel/p-channel which will allow the device to conduct electrically through its length.