A JFET manufacturer's data sheet specifies VGSoff)= - 8 V and IDSS = 6 mA. When VGS = - 4 V, the value of ID would be
A)4 mA.
B)1.5 mA.
C)1.25 mA.
D)6 mA.

Question

Quizplus · Accepted Answer

The drain current ID for a JFET can be calculated using the Shockley's equation: ID = IDSS * (1 - VGS/VGSoff)^2. Substituting the given values: ID = 6 mA * (1 - (-4)/(-8))^2 = 6 mA * (0.5)^2 = 6 mA * 0.25 = 1.5 mA.

A JFET Manufacturer's Data Sheet Specifies VGSoff)= - 8 V