A given JFET has values of Vp = +10 V and IDSS = 8 mA. What is the value of VGSoff) for the device?
A) +10 V
B) -10 V
C) -5 V
D) Cannot be determined from the information given.

Question

Quizplus · Accepted Answer

VGS(off) is the gate-source voltage at which the JFET channel is completely pinched off, and it is equal to Vp. Since Vp is given as +10 V, VGS(off) would be -10 V because Vp is defined as a negative value for an n-channel JFET and a positive value for a p-channel JFET, indicating the polarity of the gate-source voltage required to completely turn off the channel.

A Given JFET Has Values of Vp = +10 V