# Root-Mean-Square

**Definition:** The effective value of alternating current or voltage. The RMS value equates an AC current or voltage to a DC current or voltage that provides the same power transfer.

## Related Links

Root mean square – Wikipedia

Root-Mean-Square — from Wolfram MathWorld

The Root Mean Square

RMS Voltage of a Sinusoidal AC Waveform

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Root_Mean_Square

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