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diff --git a/2702/CH4/EX4.6/Ex_4_6.sce b/2702/CH4/EX4.6/Ex_4_6.sce
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+// Exa 4.6
+clc;
+clear;
+close;
+// Given data (From Exa 4.4)
+R_D= 5;// in kΩ
+R_D= R_D*10^3;// in Ω
+R_SS= 25;// in kΩ
+R_SS= R_SS*10^3;// in Ω
+I= 0.8;// in mA
+I=I*10^-3;// in A
+i_D= I/2;// in A
+unCox= 0.2;// mA/V^2
+unCox= unCox*10^-3;// in A/V^2
+WbyL= 100;
+// Formula i_D= 1/2*unCox*WbyL*V_OV^2
+V_OV= sqrt(2*i_D/(unCox*WbyL));// in V
+gm= i_D/V_OV;// in A/V;
+// gm mismatch have a negligible effect on Ad
+Ad= gm*R_D;// in V/V(approx) 
+// delta_gm= 1% of gm
+delta_gm = gm*1/100;// in A/V
+Acm= R_D/(2*R_SS)*delta_gm/gm;
+CMRRindB= 20*log10(Ad/Acm);
+disp(CMRRindB,"CMRR in dB is : ")