Question: 5 0 . A 7 0 0 - pF capacitor is connected across an ac source with a voltage amplitude of 1 6 0 V

50.A 700-pF capacitor is connected across an ac source with a voltage amplitude of 160 V and a frequency of 20 kHz.(a) Determine the capacitive reactance of the capacitor and the amplitude of the output current of the source. (b) If the frequency is changed to 60 Hz while keeping the voltage amplitude at 160 V, what are the capacitive reactance and the current amplitude?

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