1 files changed, 17 insertions, 0 deletions
diff --git a/3754/CH10/EX10.9/10_9.sce b/3754/CH10/EX10.9/10_9.sce
new file mode 100644
index 000000000..c1a5e7648
--- /dev/null
+++ b/3754/CH10/EX10.9/10_9.sce
@@ -0,0 +1,17 @@
+clear//
+
+//Variables
+
+p = 100.0              //resistivity (in ohm-meter)
+q = 1.6 * 10**-19      //Charge on a electron (in Coulomb)
+un = 0.36              //donor concentration (in per cubic-meter)
+
+//Calculation
+
+sig = 1/p              //conductivity (in siemen per meter)
+n = sig /(q * un)      //intrinsic concentration (in per cubic-meter)
+ND = n                 //Donor concentration (in per cubic-meter) 
+
+//Result
+
+printf("\n Donor concentration is  %0.3f  m**-3.",ND)