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diff --git a/752/CH1/EX1.2.3/1_2_3.sce b/752/CH1/EX1.2.3/1_2_3.sce
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+clc;
+// page no 7
+// prob no 1_2_3
+//pi-attenuator with 6 dB insertion loss
+//output resistance is Ro=50 ohm
+//All resistance are in ohm
+Ro=50
+ILdB=6
+IL=10^-(ILdB/20)
+//Determination of RA and RB
+RA=Ro*(1+IL)/(1-IL);
+disp('ohm',RA,+'The value of resistance RA and RB is')
+//Determination of RC
+RC=Ro*(1-(IL)^2)/(2*IL);
+disp('ohm',RC,+'The value of resistance RC is')
+\ No newline at end of file