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A series circuit consists of ac source, a 90-ȍ resistor, a 0.80-H inductor, and an 80-ȝF
capacitor. The frequency of the source is adjusted so that the capacitive reactance is
equal to twice the inductive reactance. What is the frequency of the source? 17) A) 19 Hz B) 14 Hz C) 16 Hz D) 17 Hz E) 13 Hz

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