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+//Tested on Windows 7 Ultimate 32-bit
+//Chapter 3 Semiconductor Diodes and Miscellaneous Devices Pg no. 89
+clear;
+clc;
+
+//Given Data
+
+r=1.0;//Diode resistance in ohms
+Rl=100;//Load resistance in ohms
+Ep=30;//Input supply voltage in volts peak
+
+//Solution
+
+disp("(a)");
+Ip=Ep/(Rl+r)*1000;//peak current in milli-amperes
+Irms=Ip/sqrt(2);//rms current in milli-amperes
+Iavg=Ip/%pi;//average or d.c. value of current in in milli-amperes
+
+printf("The peak value of current = Ip=%d mA\n",Ip);
+printf("The rms value of current = Irms=%.1f mA\n",Irms);
+printf("The average or d.c. value of current = Iav=%.1f mA\n",Iavg);
+
+disp("(b)");
+Pdc=(Iavg/1000)^2*Rl//d.c. output power in watts
+
+printf("The d.c. output power = Pdc=%.3f watts\n",Pdc);
+
+disp("(c)");
+Pac=(Irms/1000)^2*(Rl+r);//input ac power in watts
+
+printf("The a.c. input power = Pin=%.2f watts\n",Pac);
+
+disp("(d)");
+n=Pdc/Pac;//Rectification efficiency is output dc power over input ac power
+
+printf("Rectification efficiency= %d percentage",n*100);
+
+
+//Error in textbook as Irms=Ip/sqrt(2) and not Ip/2