Question

For a p-channel FET, the current ID at Vgs = 2V and Vds = 5V and Vgs = 3V was found to be 2mA, what will be the value of ID at Vgs = 0V and Vds = 5V?

(a) 0A

(b) 2mA

(c) Lesser than 0A

(d) Greater than 2mA

This question was addressed to me in homework.

I need to ask this question from The JFET Volt-Ampere Characteristics topic in portion Field-Effect Transistors of Electronic Devices & Circuits

Answer 1

Right option is (a) 0A

Explanation: We know that for a p channel FET, the current will flow only if Vgs is lesser than Vgs, but here pinch off voltage is 3V, when Vgs=5V which is greater than pinch off voltage the channel will be destroyed resulting in no conventional current flow.