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+//Ex 2.14 page 76
+
+clc;
+clear;
+close;
+
+VS=500;// V
+IP=250;// A
+diBYdt=60;// A/micro-s
+dvaBYdt=200;// V/micro-s
+RL=20;// ohm
+r=0.65;// ohm
+eps=0.65 ;// damping ratio
+
+F=2;// saftety factor
+IP=IP/2;// A
+diBYdt=60/2;// A/micro-s
+dvaBYdt=200/2;// V/micro-s
+L=VS/diBYdt;// uH
+R=L*10**6/VS*dvaBYdt/10**6;// ohm
+printf('Value of L = %.2f uH',L)
+printf('\n Value of R = %.1f ohm',R)
+
+Ip=VS/RL+VS/R;// A
+if Ip > IP then
+    printf('\n Value of Ip = %.1f A is greater than permissible peak current = %.1f A\n change the value of Rs',Ip,IP)
+    Rs=6;//ohm
+end
+Ip=VS/RL+VS/Rs;// A
+Cs=(2*eps/Rs)**2*L;// micro F
+printf('\n Value of C = %.2f micro F',Cs)
+
+//load combination current Cs*dv/dt = Vs/(Rs+RL)
+
+Cs=0.4;// uF (reduced value of Cs)
+Rs=6;//ohm
+dvBYdt = VS/(Rs+RL)/Cs; // V/micro-s
+printf('\n Value of dv/dt = %.1f V micro-s',dvBYdt)
+disp('This is less than the specified max. value. Hence the choice is correct.')
+
+//Answer in the textbook is wrong. In last part RL+Rs = 18 is taken in place of 26