1 files changed, 20 insertions, 0 deletions
diff --git a/3020/CH18/EX18.19/ex18_19.sce b/3020/CH18/EX18.19/ex18_19.sce
new file mode 100755
index 000000000..49f0808c8
--- /dev/null
+++ b/3020/CH18/EX18.19/ex18_19.sce
@@ -0,0 +1,20 @@
+clc;
+clear all;
+i=5e-3;//current flowing through specimen in Amp
+V=1.35;//voltage across specimen
+l=1e-2;//lenth of the sample
+b=5e-3;//breadth of the sample
+t=1e-3;//thickness of the sample
+a=5e-6;//area of the sample
+vy=20e-3;//hall voltage
+H=0.45;//magnetic field
+R=V/i;//resistance
+rho=R*a/l;//resistivity
+Ey=vy/t;//hall effect
+J=i/a;//current density
+ne=H*J/Ey;
+Rh=3*%pi/(ne*8);//hall coefficient
+disp('m^3/C',Rh,'hall coefficient is:');
+u=Rh/rho;//mobility of Ge sample
+disp('m^2/V*s',u,'mobility of Ge sample is:')
+