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diff --git a/887/CH10/EX10.2/10_2.sce b/887/CH10/EX10.2/10_2.sce
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+++ b/887/CH10/EX10.2/10_2.sce
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+clc
+//ex10.2
+V_ss=10;
+R=10*10^3;
+V_D=[0:0.001:2];
+plot(V_D,10^3*(V_ss-V_D)/R)
+xtitle('load line plot','voltage in volts','current in milli-amperes')      //milli-10^-3
+//we use the equation V_ss=R*i_D+V_D
+//at point C
+i_D=V_ss/R;      //as V_D=0
+//now if we take i_D=0, we get V_D=10 which plots at a point far off the page
+//so we take the value on the right-hand edge of V-axis i.e.,V_D=2
+//at point D
+V_D=2;
+i_D=(V_ss-V_D)/R;
+//from the intersection of load line with characteristic
+V_DQ=0.68;
+I_DQ=0.93*10^-3;
+//diode characteristic cannot be plotted
+disp(V_DQ,'diode voltage at operating point in volts')
+disp(I_DQ*10^3,'current at opeating point in milli-amperes')      //milli-10^-3