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

---
 608/CH21/EX21.14/21_14.sce | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)
 create mode 100755 608/CH21/EX21.14/21_14.sce

(limited to '608/CH21/EX21.14/21_14.sce')

diff --git a/608/CH21/EX21.14/21_14.sce b/608/CH21/EX21.14/21_14.sce
new file mode 100755
index 000000000..f98ecf87a
--- /dev/null
+++ b/608/CH21/EX21.14/21_14.sce
@@ -0,0 +1,19 @@
+//Problem 21.14: The armature of a d.c. machine has a resistance of 0.25 ohm and is connected to a 300 V supply. Calculate the e.m.f. generated when it is running: (a) as a generator giving 100 A, and (b) as a motor taking 80 A.
+
+//initializing the variables:
+Ra = 0.25; // in ohms
+V = 300; // in Volts
+Ig = 100; // in Amperes
+Im = 80; // in Amperes
+
+//calculation:
+//As a generator, generated e.m.f.,
+// E = V + Ia*Ra
+Eg = V + Ig*Ra
+//For a motor, generated e.m.f. (or back e.m.f.),
+// E = V - Ia*Ra
+E = V - Im*Ra
+
+printf("\n\n Result \n\n")
+printf("\n (a)As a generator, generated e.m.f. is %.0f V ",Eg)
+printf("\n (b)back e.m.f. is %.0f V ",E)
\ No newline at end of file
-- 
cgit