If 1/2 = 50 sin Irms ?
Correct answer: C. 70.7
- A. 100
- B. 0.707
- C. 70.7
- D. 50
Explanation
In alternating current (AC) circuits, the RMS (Root Mean Square) value is a measure of the effective value of the AC current or voltage. For a sinusoidal waveform, the RMS value is equal to the peak value divided by the square root of 2 (approximately 0.707). Given that the peak current (Ipeak) is 50, the RMS current (Irms) is calculated as Irms = Ipeak × 0.707. Therefore, the correct answer is 70.7. Option A is incorrect as it represents a simple doubling of the peak value. Option B is incorrect as it refers to the conversion factor, not the actual RMS value. Option D is incorrect as it represents the peak value rather than the RMS value.
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