initial commit / add all books

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diff --git a/704/CH3/EX3.19/3_19.txt b/704/CH3/EX3.19/3_19.txt
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+//Caption:In a single phase transformer Determine equivalent resistance referred to secondary side and equivalent reactance referred to secondary side

+//Exam:3.19

+clc;

+clear;

+close;

+V_1=2000;//Primary voltage at no load or full load(in Volts)

+V_2=400;//Secondary voltage at no load (in Volts)

+K=V_2/V_1;//Ratio of transformation

+R_1=5.2;//Primary resistance(in Ohm)

+R_2=0.2;//Secondary resistance(in Ohm)

+X_1=12.5;//Primary reactance(in Ohm)

+X_2=0.5;//Secondary reactance(in Ohm)

+R_o2=R_2 + (K^2)*R_1;//Equivalent resistance as referred to secondary(in Ohm)

+disp(R_o2,'Equivalent resistance as referred to secondary(in Ohm)=');

+X_o2=X_2 + (K^2)*X_1;//Equivalent reactance as referred to secondary(in Ohm)

+disp(X_o2,'Equivalent reactance as referred to secondary(in Ohm)=');
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diff --git a/704/CH3/EX3.19/R3_19.txt b/704/CH3/EX3.19/R3_19.txt
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+Equivalent resistance as referred to secondary(in Ohm)=   

+ 

+    0.408  

+ 

+ Equivalent reactance as referred to secondary(in Ohm)=   

+ 

+    1.  
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diff --git a/704/CH3/EX3.19/ex3_19.sce b/704/CH3/EX3.19/ex3_19.sce
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index 000000000..23548ab4b
--- /dev/null
+++ b/704/CH3/EX3.19/ex3_19.sce
@@ -0,0 +1,16 @@
+//Caption:In a single phase transformer Determine equivalent resistance referred to secondary side and equivalent reactance referred to secondary side

+//Exam:3.19

+clc;

+clear;

+close;

+V_1=2000;//Primary voltage at no load or full load(in Volts)

+V_2=400;//Secondary voltage at no load (in Volts)

+K=V_2/V_1;//Ratio of transformation

+R_1=5.2;//Primary resistance(in Ohm)

+R_2=0.2;//Secondary resistance(in Ohm)

+X_1=12.5;//Primary reactance(in Ohm)

+X_2=0.5;//Secondary reactance(in Ohm)

+R_o2=R_2 + (K^2)*R_1;//Equivalent resistance as referred to secondary(in Ohm)

+disp(R_o2,'Equivalent resistance as referred to secondary(in Ohm)=');

+X_o2=X_2 + (K^2)*X_1;//Equivalent reactance as referred to secondary(in Ohm)

+disp(X_o2,'Equivalent reactance as referred to secondary(in Ohm)=');
\ No newline at end of file