Question

What will happen if gate voltage applied is positive to pinch off voltage?

(a) Device burns

(b) More current flows

(c) Nothing happens

(d) Current remains the same

I had been asked this question in homework.

This interesting question is from The Pinch off Voltage Vp topic in division Field-Effect Transistors of Electronic Devices & Circuits

Answer 1

Right choice is (a) Device burns

To elaborate: When the voltage applied across the gate terminal becomes more positive, all of the current will start flowing from drain to gate terminal. This results in breaking of insulator layer, resulting in device destruction.