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+//Book Name:Fundamentals of Electrical Engineering
+//Author:Rajendra Prasad
+//Publisher: PHI Learning Private Limited
+//Edition:Third ,2014
+
+//Ex2_6.sce.
+
+clc;
+clear;
+R1=15;
+R2=20;
+R3=10;
+R4=5;
+
+a1=35;b1=-20;c1=2; //these are the coefficient values of I1,I2 and source obtained from loop ABDA in the given circuit
+a2=-20;b2=35;c2=0.5; //these are the coefficient values of I1,I2 and source obtained from loop BCDB in the given circuit
+del=det([a1 b1;a2 b2]);
+del1=det([c1 b1;c2 b2]);
+del2=det([a1 c1;a2 c2]);
+
+I1=del1/del; //Using Cramer's rule
+I2=del2/del; //Using Cramer's rule
+I20=I1-I2;
+Vcb=R3*I2;
+printf("\n Current through the 20 ohm resistor=%1.4f A \n",I20)
+printf("\n Voltage across the node B and C=%1.3f V \n",Vcb)