For a sine wave with peak value Imax the r.m.s. value is_______?
Correct answer: B. 0.707
- A. 0.5 Imax
- B. 0.707
- C. 0.9
- D. 1.414 Lmax
Explanation
For a sinusoidal current, the RMS value is its peak value divided by \(\sqrt{2}\), giving \(I_{rms}=0.707I_{max}\). Option b appears to omit the factor \(I_{max}\), but it is clearly the intended choice.
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