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diff --git a/728/CH8/EX8.3/Ex8_3.sce b/728/CH8/EX8.3/Ex8_3.sce
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+//Caption:Calculate (i)-input power in watts,(ii)-output power in watts, (iii)-efficiency 
+//Exa:8.3
+clc;
+clear;
+close;
+n=2;
+V_o=300;//in volts
+I_o=20*10^-3;//in A
+V_i=40;//in volts
+J=1.25;//J(X')
+P_dc=V_o*I_o;
+P_ac=2*V_o*I_o*J/(2*n*%pi-%pi/2);
+eff=(P_ac/P_dc)*100;
+disp(P_dc,'Input power (in watts) =');
+disp(P_ac,'Output power (in watts) =');
+disp(eff,'Efficiency (in percent) =');
+\ No newline at end of file