RLC Circuits and Resonance

A 10 Ω resistor, a 90 mH coil, and a 0.015 µF capacitor are in series across an ac source. The impedance magnitude at 1,200 Hz below fr is_____.

  • A. 1,616 Ω
  • B. 161 Ω
  • C. 3,387 Ω
  • D. 1,771 Ω
Answer: Option A.

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