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Root Mean Square aka RMS

Step 1 : Perform Sampling
Current case we take half of sine wave. We can also take another half of sine wave

Step 2 : Square all the value

Step 3: Mean/Average the Squared value

Step 4 : Square Root the value from step 3

Done! You've got the RMS Value. 

ACRMS equivalent to DC

Fast Track -> RMS Value = 0.707 * VMax   - Mostly applicable for pure sine wave

Sources : https://www.youtube.com/watch?v=Ynv_C3N0fPk

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