1 files changed, 21 insertions, 0 deletions
diff --git a/3665/CH9/EX9.4/Ex9_4.sce b/3665/CH9/EX9.4/Ex9_4.sce
new file mode 100644
index 000000000..6a4064a33
--- /dev/null
+++ b/3665/CH9/EX9.4/Ex9_4.sce
@@ -0,0 +1,21 @@
+clc//
+//
+//
+
+//Variable declaration
+A=10^-6;     //area(m^2)
+e=1.6*10^-19;     //charge(coulomb)
+Nd=10^21;     //electron concentration(m^-3)
+epsilonr=11.7;
+epsilon0=8.85*10^-12;
+V=10;    //potential(V)
+RL=50;   //resistance(ohm)
+
+//Calculation
+Cj=(A/2)*sqrt(2*e*epsilonr*epsilon0*Nd/V);      //diode capacitance(F)
+delta_fel=1/(2*%pi*RL*Cj);    //frequency bandwidth(Hz)
+
+//Result
+printf("\n diode capacitance is %0.1f pF",Cj*10^12)
+printf("\n frequency bandwidth is %0.0f MHz",delta_fel*10^-6)
+printf("\n answer varies due to rounding off errors")