Rms Value
Easyphysics
If the instantaneous current is i = 4 sin(100πt + π/3) A, then the RMS value of current is:
Select the correct option:
Solution
Incorrect! Answer:
2√2 A
Peak current I0 = 4 A. Irms = I0 / sqrt(2) = 4 / sqrt(2) = 2√2 A.
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About This Question
- Subject
- physics
- Chapter
- alternating current
- Topic
- rms value
- Difficulty
- Easy
- Year
- 2025
Solution
Correct Answer:
2√2 A
Peak current I0 = 4 A. Irms = I0 / sqrt(2) = 4 / sqrt(2) = 2√2 A.
This easy difficulty physics question is from the chapter alternating current, covering the topic of rms value. It appeared in the 2025 exam.
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