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+//===========================================================================
+//chapter 5 example 25
+
+clc;clear all;
+
+//variable declaration
+Emax    = 200;		//emf of peak value in V
+R            = 10;		//resistance in Ω
+
+//calculations
+Imax     = Emax/(R);		//peak value of current in A
+Iav         = (2*Imax)/(%pi);	//reading of moving -coil ammeter in A
+Irms    = Imax/(sqrt(2));		//reading of moving -iron  ammeter in A
+
+//result
+mprintf("reading of moving -coil ammeter = %3.2f A",Iav);
+mprintf("\nreading of moving -iron  ammeter = %3.2f A",Irms);
+mprintf("\nreading of hot-wire ammeter = %3.2f A",Irms);
+
+
+