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The AC signal off the mains in the US has an RMS value of 120 V and a frequency of 60Hz. (a) Calculate the period

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The AC signal off the mains in the US has an RMS value of 120 V and a frequency of 60Hz. (a) Calculate the period T of the voltage. (b) Calculate the peak voltage. (c) Find the time after t: 0 when the instantaneous voltage of (SO-Hz AC first reaches the following values: (a) V0 /2 (b) V0 (c) 0

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