Answer to Question #152015 in Physics for jean

Question #152015

The current through a circuit is given by i = 56.4 sin (754t)
A, where t is in seconds. What is the rms current, and what
is the frequency of the ac source?

Expert's answer

"I_{rms}=0.707I_m=0.707\\cdot56.4\\approx40(A)"

"754=2\\pi\\nu\\to \\nu=\\frac{754}{2\\cdot3.14}=120(Hz)"

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