If a sinusoidal wave has frequency of 50 Hz with 30 A r.m.s. current which of the following equation represents this wave_________ ?
Correct answer: A. 42.42 sin 3141
- A. 42.42 sin 3141
- B. 60 sin 25 t
- C. 30 sin 50 t
- D. 84.84 sin 25 t
Explanation
A 30 A rms sinusoid has peak value 30√2 = 42.42 A, and its angular frequency is 2π(50) = 314 rad/s. Therefore the waveform is 42.42 sin(314t), represented by option a despite the apparent transcription error.
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