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A 15 Ω resistor, an inductor with 8 Ω inductive reactance, and a capacitor with 12 Ω capacitive reactance are in parallel across an ac voltage source. The circuit impedance is

12.7 Ω
127 Ω
4,436 Ω
6,174 Ω

Correct Answer: 12.7 Ω

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