initial commit / add all books

4 files changed, 49 insertions, 0 deletions

diff --git a/2138/CH5/EX5.1/ex_5_1.sce b/2138/CH5/EX5.1/ex_5_1.sce
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+//Example 5.1: E.C.E
+clc;
+clear;
+close;
+//given data :
+t=200; // time in sec
+M=111.83; // silver in mg
+I=0.5; // current in A
+Z=(M/(I*t*1000))*1000;// electro-chemical-equivalent
+disp(Z,"E.C.E,Z(mg/C) = ")
diff --git a/2138/CH5/EX5.2/ex_5_2.sce b/2138/CH5/EX5.2/ex_5_2.sce
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+//Example 5.2: thickness  
+clc;
+clear;
+close;
+//given data :
+Z=0.329*10^-3;// IN g/C
+I=1;// in amperes
+t=90*60;// in seconds
+M=Z*I*t;// in grams 
+A=200;//area in centimete square
+S=8.9;//density in g/cc
+T=(M)/(2*A*S);//thickness in cm
+disp(T,"thickness of copper in cm is")
diff --git a/2138/CH5/EX5.3/EX_5_3.sce b/2138/CH5/EX5.3/EX_5_3.sce
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+//Example 5.3 // resistance of the heater element
+clc;
+clear;
+close;
+w=15;// in kg
+t1=15;// in degree celsius
+t2=100;//in degree celsius
+t=25;// time in minutes
+I=10;// in ampere
+n=85;//efficiency of conversion in percentage
+ho=w*(t2-t1);//output heat required in kcal
+R=((ho*4187*100)/(I^2*t*60*n));// resistance in ohms
+disp(R,"resistance in ohms")
diff --git a/2138/CH5/EX5.4/EX_5_4.sce b/2138/CH5/EX5.4/EX_5_4.sce
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+//Example 5.4 // potential difference across the heater element
+clc;
+clear;
+close;
+w=20;// in kg
+t1=10;// in degree celsius
+t2=90;//in degree celsius
+t=2*3600+19*60+34;// time in seconds
+I=4;// in ampere
+n=80;//efficiency of conversion in percentage
+ho=w*(t2-t1);//output heat required in kcal
+V=((ho*4187*100)/(I*t*n));// POTENTIAL DROP IN VOLTS
+disp(V,"potential drop across heater element in volts is")