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diff --git a/3802/CH3/EX3.11/Ex3_11.sce b/3802/CH3/EX3.11/Ex3_11.sce
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+//Book Name:Fundamentals of Electrical Engineering
+//Author:Rajendra Prasad
+//Publisher: PHI Learning Private Limited
+//Edition:Third ,2014
+
+//Ex3_11.sce
+
+clc;
+clear;
+R=10e3;   //Resistance in ohm
+L=50.7e-6;   //Inductor value in henry
+C=500e-12;   //capacitor value  in farad
+
+fr=1/(2*%pi*sqrt(L*C));
+printf("\n Resonance frequency=%1.0f MHz \n",fr*1e-6)
+
+Q=(1/R)*sqrt(L/C);
+printf("\n Quality factor=%1.5f \n",Q)
+
+f1=(-fr/(2*Q))+(fr*sqrt((1/(2*Q))^2+1));
+printf("\n Lower half power frequency=%2.1f kHz \n",f1*1e-3) 
+
+f2=(fr/(2*Q))+(fr*sqrt((1/(2*Q))^2+1));
+printf("\n Upper half power frequency=%5.1f kHz \n",f2*1e-3)
+
+BW=f2-f1;
+printf("\n Bandwidth=%5.0f kHz \n",BW*1e-3)
+
+//Answer vary dueto round off error in fr , Q Calculation