1 files changed, 17 insertions, 0 deletions
diff --git a/1730/CH2/EX2.4/Exa2_4.sce b/1730/CH2/EX2.4/Exa2_4.sce
new file mode 100755
index 000000000..cc963a86d
--- /dev/null
+++ b/1730/CH2/EX2.4/Exa2_4.sce
@@ -0,0 +1,17 @@
+//Exa4
+clc;
+clear;
+close;
+//given data :
+rho=1.73*10^-8;//in ohm-meter
+toh=2.42*10^-14 ; //in second
+e=1.6*10^-19; //in C
+m=9.1*10^-31;//in kg
+sigma=1/rho;
+//(i) Number of free electrons per m^3
+n=(m*sigma)/(e^2*toh);
+disp("Number of free electrons per cube meter is : "+string(n));
+//(ii) Mobility of electrons,
+miu_e=(e*toh)/m;
+disp("Mobility of electrons is : "+string(miu_e)+" m^2/V-s");
+//Note: Answer in the book is wrong
+\ No newline at end of file