Multiple Choice
The current in an AC circuit takes 0.02 s to change direction. What is the angular frequency of the AC source?
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31. Alternating Current
Alternating Voltages and Currents
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1:59 minutesOpen Question
A sinusoidal current i = I cosωt has an rms value I_rms = 2.10 A. (a) What is the current amplitude?
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