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Question 20191
JEE Physics · Easy

Electromagnetic Induction and Alternating Current: RMS Value MCQ

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RMS ValueEasyQuestion 20191

Question

The RMS value of a sinusoidal AC voltage V₀ sinωt is:
  1. A
    V₀
  2. B
    V₀/√2
    Correct
  3. C
    V₀√2
  4. D
    V₀/2

Correct answer

V₀/√2

Explanation

For a sinusoidal signal, V_rms = V₀/√2 ≈ 0.707V₀. This is the DC-equivalent value for power purposes.

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