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diff --git a/1730/CH3/EX3.10/Exa3_10.sce b/1730/CH3/EX3.10/Exa3_10.sce
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+//Exa3.10
+clc;
+clear;
+close;
+// given data
+e=1.6*10^-19;//in C
+miu_e=.38;// in m^2/V-s
+miu_h=.18;// in m^2/V-s
+l=25;// in mm (length)
+l=l*10^-3;// in m 
+w=4;// in mm (width)
+w=w*10^-3;// in m
+t=1.5;// in mm (thickness)
+t=t*10^-3;// in m
+V=10;// in V
+l=25;// in mm
+l=l*10^-3;//in m
+E=V/l;
+//(i) 
+v_e=miu_e*E;
+v_h=miu_h*E;
+disp("Electron drift velocity is : "+string(v_e)+" m/s");
+disp("Hole drift velocity is : "+string(v_h)+" m/s");
+n_i=2.5*10^19;//in /m^3
+//(ii)
+sigma_i=n_i*e*(miu_e+miu_h);
+disp("Intrinsic conductiviry of Ge is : "+string(sigma_i)+" /ohm-cm");
+//(iii)
+a=w*t;
+I=sigma_i*E*a;// in amp
+I=I*10^3;// in m A
+disp("Total current is : "+string(I)+" mA");