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+//Tested on Windows 7 Ultimate 32-bit

+//Chapter 7 Field Effect Transistors Pg no. 255 and 256

+clear;

+clc;

+

+//Given Data

+//Figure 7.49(b)

+

+R1=8.2D3;//divider network resistance R1 in ohms

+R2=15D3;//divider network resistance R2 in ohms

+RD=680;//drain resistance in ohms

+RS=0;//source resistance in ohms

+VDD=20;//drain supply voltage in volts

+ID_ON=2D-3;//ON drain current in amperes

+VGS=10;//gate to source voltage in volts

+VGS_th=5;//threshold voltage in volts

+

+//Solution

+

+VGS_Q=VDD*R2/(R1+R2);//gate to source voltage in volts

+C=ID_ON/(VGS-VGS_th)^2;//constant C in ampere/volt^2

+ID=C*(VGS_Q-VGS_th)^2;//drain current in amperes

+VDS=VDD-ID*RD;//drain to source voltage in volts

+printf("VDS = %.2f Volts",VDS);