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An ac voltage source is connected in series with a1.3 µF capacitor and a 610 ohm resistor. Using a digital ac voltmeter, the amplitude of the voltage source is measured to be 4 Volt rms, while the voltages across the resistor and across the capacitor are found to be 3.0 Volt rms and 2.7 Vrms, correspondingly.

Compute the frequency of the ac voltage source.

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