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+//scilab 5.4.1

+//Windows 7 operating system

+//chapter 13 Field-Effect Transistors

+clc

+clear

+//For n-channel enhancement mode MOSFET operating in active region

+VT=2//VT=Threshold voltage

+K=0.5//K=(IDSS/(Vp^2)) in terms of mA/V^2

+VDD=15//VDD=drain supply voltage

+RL=1//RL=load resistance in kilo ohm

+R1=200*10^3//R1=resistance in the voltage divider network in terms of ohms

+R2=100*10^3//R2=resistance in the voltage divider network in terms of ohms

+VGS=(R2/(R1+R2))*VDD//VGS=gate-to-source voltage

+disp("V",VT,"Threshold voltage is =")

+disp("V",VGS,"The gate-to-source voltage VGS is =")

+ID=K*(VGS-VT)^2//ID=drain current in mA

+disp("mA",ID,"The value of drain current ID is =")

+VDS=VDD-(ID*RL)//VDS=drain-to-source voltage

+disp("V",VDS,"The value of drain-to-source voltage VDS is=")

+if (VDS>(VGS-VT)) then

+    disp("As VDS>(VGS-VT),(i.e. 10.5>(5-2)),the operation is indeed in the active region ")

+end