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+//===========================================================================
+//chapter 7 example 24
+clc;
+clear all;
+
+//variable declaration
+W1	= 2000;		//reading of wattmeter in watts
+W2	= 1000;		//reading of wattmeter in watts
+
+//calculations
+Q	= sqrt(3)*(W1-W2);		//reactive power of the network in V A
+P	= Q/(sqrt(3));		//wattmeter reading when current coil is connected in one phase and the potential coil across the two phases in VA
+
+//result
+mprintf("Wattmeter reading = %3.2f  reactive volt amperes",P);
+
+