Impedance: For a series ac circuit consisting of a resistance of 13.0 k?, a capacitance of 7.0 ?F, and an inductance of 35.0 H, what frequency is needed to minimize the impedance if the voltage amplitude is 110 V?
A. 0.010 kHz
B. 0.064 kHz
C. 12 kHz
D. 2.1 kHz
Answer: A
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