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

---
 1730/CH2/EX2.40/Exa2_40.sce | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)
 create mode 100755 1730/CH2/EX2.40/Exa2_40.sce

(limited to '1730/CH2/EX2.40/Exa2_40.sce')

diff --git a/1730/CH2/EX2.40/Exa2_40.sce b/1730/CH2/EX2.40/Exa2_40.sce
new file mode 100755
index 000000000..9204490a5
--- /dev/null
+++ b/1730/CH2/EX2.40/Exa2_40.sce
@@ -0,0 +1,30 @@
+//Exa2.40
+clc;
+clear;
+close;
+format('v',9)
+// given data
+// First Case:
+r1=1.5/2;// in cm
+// let radius thickness of insulation = r1_t
+r1_t=1.5;// in cm
+r2=r1+r1_t;
+R_desh=500;// in M ohm
+R_desh=R_desh*10^6;// in ohm
+// Second case:
+r1_desh=r1;// in cm (as before)
+// let radius thickness of insulation = r2_t
+r2_t=2.5;// in cm
+r2_desh=r1+r2_t;
+// since Insulation resistance , R_desh= sigma/(2*%pi*l)*log(r2/r1) and
+//                               R1_desh= sigma/(2*%pi*l)*log(r2_desh/r1_desh)
+// Dividing R1_desh by R1, We get
+// R1_desh/R_desh = log(r2_desh/r1_desh)/log(r2/r1)
+// Let R = R1_desh/R_desh, Now
+R= log(r2_desh/r1_desh)/log(r2/r1);
+R1_desh=R*R_desh;
+disp("New insulation resistance is : "+string(R1_desh*10^-6)+" M ohm");
+
+
+
+
-- 
cgit