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| author | priyanka | 2015-06-24 15:03:17 +0530 |
|---|---|---|
| committer | priyanka | 2015-06-24 15:03:17 +0530 |
| commit | b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b (patch) | |
| tree | ab291cffc65280e58ac82470ba63fbcca7805165 /2252/CH19/EX19.11/Ex19_11.sce | |
| download | Scilab-TBC-Uploads-b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b.tar.gz Scilab-TBC-Uploads-b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b.tar.bz2 Scilab-TBC-Uploads-b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b.zip | |
initial commit / add all books
Diffstat (limited to '2252/CH19/EX19.11/Ex19_11.sce')
| -rwxr-xr-x | 2252/CH19/EX19.11/Ex19_11.sce | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/2252/CH19/EX19.11/Ex19_11.sce b/2252/CH19/EX19.11/Ex19_11.sce new file mode 100755 index 000000000..5575480c9 --- /dev/null +++ b/2252/CH19/EX19.11/Ex19_11.sce @@ -0,0 +1,20 @@ +
+R=.25+.05//total resistance of the armature circuit
+N1=500//normal speed
+V=250//applied voltage
+Ia1=100//armature current at normal speed
+Eb1=V-Ia1*R
+//solving part (i)
+R1=R+1//total resisitance in the armature circuit
+Ia2=50//armature current
+Eb2=V-Ia2*R1
+//back emf is directly proportional to speed
+N2=Eb2/Eb1*N1
+mprintf("For(i)\nSpeed=%d rpm\n",round(N2))
+//solving part (ii)
+Ia3=50//armature current
+Eb3=V-Ia3*R
+//Ish3=.6*Ish1-->phi3/phi1=.6
+//back emf is directly proportional to flux and speed
+N3=(Eb3/Eb1)*N1/.6
+mprintf("For(ii)\nSpeed=%d rpm", N3)
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