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+//==========================================================================
+//chapter 5 example 7
+clc;clear all;
+
+//variable declaration
+R      = 50;            //resistance of the magnetic coil in Ω
+Rt    = 500;        //resistance in Ω
+L      = 0.09;          //inductance of the voltmeter in H
+
+//calculations
+r      =Rt-R;
+C      = (L/(r^2));             //capacitance to be placed in u F
+
+//result
+mprintf("capacitance to be placed  to make the instrument read correctly bot dc as well as ac = %3.3fe uF",(C*10^6));
+