What does “RMS value” actually mean in Alternating Current, and why does it matter for NEET?
the effective (root-mean-square) value of AC that delivers the same heating as a steady DC; Vrms = V0/√2.
In simple words: the effective (root-mean-square) value of AC that delivers the same heating as a steady DC; Vrms = V0/√2. Getting RMS value clear matters because NEET questions on Alternating Current usually test this idea directly, not just a formula you memorised.
Key point
RMS value
Common mistake
taking the 220 V mains as the peak voltage.
Memory tip
220 V mains is the rms value; the peak is about 311 V.
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