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+
+
+                     // Example  9.12
+
+T=20*10^-3;                  // Time period
+A0_10=40*100*10^-3;          // Area between t= 0-10
+A10_20=100*10*10^-3;         // Area between t= 10-20
+A=A0_10+A10_20;              // Total Area of waveform
+V=A/T;                       // Average value of waveform
+disp(' Average value of waveform = '+string(V)+' Volt');
+
+v=sqrt(V);                  // Rms value
+disp(' Rms value of waveform = '+string(v)+' Volt');
+
+
+
+
+
+         // p 230     9.12
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