// Exa 2.17
format('v',5);
clc;
clear; 
close;
// Given data 
V_D= 3.5;// in V
I_D= 115*10^-6;//in A
upCox= 60;// in µA/V^2
upCox= upCox*10^-6;// in A/V^2
L= 0.8;//in µm
V_GS= -1.5;// in V
Vt= 0.7;// in V
R= V_D/I_D;// in Ω
R= R*10^-3;// in kΩ
disp(R,"The value required for R in kΩ is : ")
// Formul I_D= 1/2*upCox*W/L*(V_GS-Vt)^2
W= 2*I_D*L/(upCox*(V_GS-Vt)^2)
disp(W,"The value required for W in µm is : ")

//  Note:  Calculation of evaluating the value of W in the book is wrong , so the Answer of the book is wrong