Answer to Question #258583 in Electrical Engineering for Hazel

Question

The device parameters for n-channel JFET are maximum drain current (IDSS) = 10mA, pinch-off voltage (Vp) =-4V

Calculate the drain current for 

(a) VGS= 0V (b) VGS=-1V (c) VGS=-4V

Answer 1

The drain current of JFET is given as

(a) For VGS =0, ID =IDss = 10mA

(b) VGS= -1V, ID= 10(1-1/4)²= 3.10 mA

(c) VGS= -4V, iD = 10(1-1)² = 0 mA