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2:24
YouTube
Prof MAD
AC vs DC Power: Why RMS Actually Matters
Why do we use RMS values in AC circuits—but not in DC? In this video, we compare AC vs DC power using a simple example: two circuits lighting the same bulb. In a DC circuit, voltage and current stay constant, so power is easy to calculate using P = V × I. But in an AC circuit, voltage and current continuously change, which makes power ...
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