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+//Example 2.7, Page Number 78
+//Junction Capacitance Calculation
+clc;
+
+V=-4 //Reverse Bias voltage in volts
+nd=4*(10**21) //in per meter cube
+Vo=0.8//in volts
+A=4*(10**-7) //Junction Area in meter square
+er=11.8 //Relative permittivity
+e=1.6*(10**-19) //Charge of an Electron in coulombs
+eo=8.85*(10**-12) //Absolute permittivity in farads per meter
+
+//By equation 2.63
+Cj=(A/2)*sqrt((2*eo*er*e*nd)/(Vo-V))
+
+mprintf("The Junction Capacitance is %.2e pF",Cj)