Question

For an n-channel FET, the current v at Vgs=-2V and Vds=5V 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

I got this question during an online interview.

My doubt is from The JFET Volt-Ampere Characteristics in chapter Field-Effect Transistors of Electronic Devices & Circuits

Answer 1

The correct option is (d) Greater than 2mA

For explanation I would say: We know that for a n channel FET, the current will flow only if Vgs is greater than Vp, since in this case current is flowing, which indicates Vgs is greater than pinch off. But as Vgs  increases the flow of current also increases, hence it will be greater than 2mA.