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+//Network Theorem 1

+//page no-3.29

+//example3.24

+//calculation of Isc (short-circuit current)

+disp("Applying KVL to mesh 1:");

+disp("I1=2");....//equation 1

+disp("Writing current equation to supermesh:");//meshes 2 & 3 will form a supermesh 

+disp("I3-I2=4");....//equation 2

+disp("Applying KVL to supermesh:");

+disp("-5I2-15I3=0");....//equation 3

+disp("solving these equations we get :");...//solving equations in matrix form

+A=[1 0 0;0 -1 1;0 -5 -15];

+B=[2 4 0]'

+X=inv(A)*B;

+disp(X);

+disp("I1 = 2 A");

+disp("I2 = -3 A");

+disp("I3 = 1 A");

+a=2;

+b=-3;

+x=a-b;

+printf("\nIsc = %.f A",x);

+//calculation of Rn (norton's resistance)

+disp("replacing the voltage source with short circuit and current source by open circuit");

+c=1;

+m=15;

+y=(c*(m+x))/(c+m+x);

+printf("\nRn = %.2f Ohm",y);

+//calculation of IL (load current)

+z=10;

+i=x*(y/(z+y));

+printf("\nIL = %.2f A",i);
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