Q1
The gate voltage in a JFET at which drain current becomes zero is called ___________ voltage
A.
saturation
B.
pinch-off
C.
active
D.
cut-off
AnswerAnswer: Option D
Solution
Answer: Option D
Solution:
The gate voltage in a JFET at which the drain current becomes zero is called the cut-off voltage.Cut-off voltage is the gate-source voltage (V_GS) at which the JFET channel is completely pinched off, and the drain current (I_D) ceases.
At this point, the JFET is in the off state, and no current flows from drain to source.
Other terms like saturation, pinch-off, and active refer to different operating regions of the JFET, not the voltage at which the drain current is zero.