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+//Chapter 4, Example 4.2
+
+clc
+//Initialisation
+eo=8.85*10^-12              //dielectric constant
+er=100                    //relative permittivity
+a=10*10^-3*25*10^-3       //area in metre
+d=7*10^-6                 //distance between plates
+
+
+
+
+//Calculation
+c=(eo*er*a)/d                  //capacitance in farad
+
+
+
+//Results
+printf("Capacitance, C = %.1f nF",c*10^9)