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A capacitor has an rms current of 21 mA at a frequency of 60.0 Hz when the rms voltage across it is 14 V.
(a) What is the capacitance of this capacitor?
(b) If the frequency is increased, will the current in the capacitor increase, decrease, or stay the same? Explain.
(c) Find the rms current in this capacitor at a frequency of 410 Hz.