initial commit / add all books

2 files changed, 36 insertions, 0 deletions

diff --git a/431/CH2/EX2.23/EX2_23.sce b/431/CH2/EX2.23/EX2_23.sce
new file mode 100755
index 000000000..663dc4e68
--- /dev/null
+++ b/431/CH2/EX2.23/EX2_23.sce
@@ -0,0 +1,30 @@
+//Calculate the speed

+//Chapter 2

+//Example 2.23

+//page 127

+clear;

+clc;

+disp("Example 2.23")

+V=200;                        //voltage in volts

+Ia=20;                        //armature current in amperes

+Ra=0.5;                        //armature resistance in ohms

+Rse=0.2;                        //field winding resistance in ohms

+E=V-(Ia*(Ra+Rse));

+printf("In first case,E=%fV",E)

+//E=k*phi*N

+N=1000;                        //speed in rpm

+Kphi=E/N;   

+//a resistance R is connected in parallel with the series field which is called diverter

+disp("when resistace R is added and new conditions")

+I=20;                        //total current flowing

+//current is equally devided between series field and diverter

+Ise2=I/2;

+//flux at 10A current is 20percent of flux at 20A current

+p=0.70;                //percentage of flux

+Kpih1=p*Kphi;

+E1=(V-((Ia*Ra)+(Ise2*Rse)));

+printf("Induced emf=%fV",E1)

+//new speed is N1

+N1=E1/(p*Kphi)

+printf("\nN1=%frpm",N1)

+

diff --git a/431/CH2/EX2.23/resultEX2_23.txt b/431/CH2/EX2.23/resultEX2_23.txt
new file mode 100755
index 000000000..555c8b7be
--- /dev/null
+++ b/431/CH2/EX2.23/resultEX2_23.txt
@@ -0,0 +1,6 @@
+  

+ Example 2.23   

+In first case,E=186.000000V 

+ when resistace R is added and new conditions   

+Induced emf=188.000000V

+N1=1443.932412rpm
\ No newline at end of file