From 7f60ea012dd2524dae921a2a35adbf7ef21f2bb6 Mon Sep 17 00:00:00 2001
From: prashantsinalkar
Date: Tue, 10 Oct 2017 12:27:19 +0530
Subject: initial commit / add all books

---
 3754/CH21/EX21.1/21_1.sce | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)
 create mode 100644 3754/CH21/EX21.1/21_1.sce

(limited to '3754/CH21/EX21.1/21_1.sce')

diff --git a/3754/CH21/EX21.1/21_1.sce b/3754/CH21/EX21.1/21_1.sce
new file mode 100644
index 000000000..784037c28
--- /dev/null
+++ b/3754/CH21/EX21.1/21_1.sce
@@ -0,0 +1,22 @@
+clear//
+
+//Variables
+
+RL = 100.0                                   //Resistance (in ohm)
+Vm = 300.0                                   //Maximum voltage (in volts) 
+P1 = 25.0                                    //Load power1 (in watt)
+P2 = 80.0                                    //Load power2 (in watt)
+
+//Calculation 
+
+Vdc = Vm / (2 * %pi)                     //dc voltage (in volts)
+//When power is 25 watt
+cosinealpha = (P1 * RL / Vdc**2)**0.5 -1     //cos of alpha       
+alpha = acos(cosinealpha)               //Value of alpha (in radians)
+
+//When power is 80 watt
+cosinealpha1 = (P2 * RL / Vdc**2)**0.5 -1    //cos of alpha       
+alpha1 = acos(cosinealpha1)             //Value of alpha (in radians)
+//Result
+
+printf("\n Angular firing control when load power P = 25 W is  %0.2f  degree.\nAngular firing control when load power P = 80 W is  %0.2f  degree.",alpha*180.0/%pi,alpha1*180.0/%pi)
-- 
cgit