From b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b Mon Sep 17 00:00:00 2001
From: priyanka
Date: Wed, 24 Jun 2015 15:03:17 +0530
Subject: initial commit / add all books

---
 2252/CH19/EX19.11/Ex19_11.sce | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)
 create mode 100755 2252/CH19/EX19.11/Ex19_11.sce

(limited to '2252/CH19/EX19.11')

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)
-- 
cgit