RLC Circuits and Resonance

A 90 Ω resistor, a coil with 30 Ω of reactance, and a capacitor with 50 Ω of reactance are in series across a 12 V ac source. The current through the resistor is_____.

  • A. 9 mA
  • B. 90 mA
  • C. 13 mA
  • D. 130 mA
Answer: Option D.
Explanation: 

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