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

---
 2459/CH21/EX21.9/Ex21_9.sce | 5 +++++
 1 file changed, 5 insertions(+)
 create mode 100644 2459/CH21/EX21.9/Ex21_9.sce

(limited to '2459/CH21/EX21.9/Ex21_9.sce')

diff --git a/2459/CH21/EX21.9/Ex21_9.sce b/2459/CH21/EX21.9/Ex21_9.sce
new file mode 100644
index 000000000..eea342ef5
--- /dev/null
+++ b/2459/CH21/EX21.9/Ex21_9.sce
@@ -0,0 +1,5 @@
+//chapter21
+//example21.9
+//page474
+
+printf("The purpose of using series resistance R is : \n 1) if R is not present, diode will short voltage source in positive half cycle \n 2) so large current will flow which may damage voltage source or diode. \n To prevent this i.e. to protect diode and voltage source, R is used.")
-- 
cgit