An AC supply has a peak voltage of 325 V. What is its rms voltage?
Correct answer A. 230 V
Explanation
For a sinusoidal supply V_rms = V₀/√2 = 325/1.414 ≈ 230 V. Multiplying by √2 gives 460 V, and halving the peak gives 163 V.
Answer checked How we write and check questions
Discussion