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diff --git a/165/CH4/EX4.19/ex4_19.sce b/165/CH4/EX4.19/ex4_19.sce
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+//Example 4.19
+close;
+clc;
+
+e=10;                 //in volts
+R1=10000;             //In ohms
+R2=10000;             //In ohms
+Ifsd=100*10^-6;       //in amperes
+Range=10;             //in volts
+Sdc=1/Ifsd;           //Sensitivity
+Rs=Sdc*Range;         //Multiplier Resistence
+
+//Voltage across R2
+R=R2*Rs/(R2+Rs);
+ER2=e*R/(R1+R);
+printf('\nThe reading obtained by DC voltmeter = %.2f V\n',ER2)
+
+//Reading obtained using half wave rectifier
+Shw=0.45*Sdc;
+Rs=Shw*Range;
+R=R2*Rs/(R2+Rs);
+ER2hw=e*R/(R1+R);
+printf('\nReading obtained using half wave rectifier = %.2f V\n',ER2hw)
+
+//Reading obtained using full wave rectifier
+Sfw=0.90*Sdc;
+Rs=Sfw*Range;
+R=R2*Rs/(R2+Rs);
+ER2fw=e*R/(R1+R);
+printf('\nReading obtained using full wave rectifier = %.2f V\n',ER2fw)
+\ No newline at end of file