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

---
 2708/CH21/EX21.1/ex_21_1.sce | 13 +++++++++++++
 2708/CH21/EX21.2/ex_21_2.sce |  9 +++++++++
 2 files changed, 22 insertions(+)
 create mode 100755 2708/CH21/EX21.1/ex_21_1.sce
 create mode 100755 2708/CH21/EX21.2/ex_21_2.sce

(limited to '2708/CH21')

diff --git a/2708/CH21/EX21.1/ex_21_1.sce b/2708/CH21/EX21.1/ex_21_1.sce
new file mode 100755
index 000000000..9c7650f35
--- /dev/null
+++ b/2708/CH21/EX21.1/ex_21_1.sce
@@ -0,0 +1,13 @@
+//Example 21.1 // electron spin magnetic dipole moment 
+clc;
+clear;
+//given data :
+ub=5.6D-5;//electron spin magnetic moment in eV
+kbT=1/40;//approximate value kb(constant) & at room temperature  in eV
+u=ub/kbT;//formula
+if(u<1)
+    disp(u,"electron spin magnetic dipole moment & kbT/ub>>1")
+    
+   else
+       disp(u,"kbT/ub<<1 so it is  wrong")
+       end
diff --git a/2708/CH21/EX21.2/ex_21_2.sce b/2708/CH21/EX21.2/ex_21_2.sce
new file mode 100755
index 000000000..e9c391773
--- /dev/null
+++ b/2708/CH21/EX21.2/ex_21_2.sce
@@ -0,0 +1,9 @@
+//Example 21.2 // diamagnetic susceptibility 
+clc;
+clear;
+//given data :
+r=.53D-8;//(mean radius)bohr radius in cm
+N=27D23;//atomic density in per cm2
+k=2.8D-13//k=e2/mc2constants e-electron m-mass c=speed of light in cm
+X=-2*(N*k/6)*r^2;//formula for 2 electrons
+disp(X,"diamagnetic susceptibility of helium atom")
-- 
cgit