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In an RLC series circuit at resonance, the voltages across the resistor and the inductor...

Physics
WAEC 2023

In an RLC series circuit at resonance, the voltages across the resistor and the inductor are 30 V and 40 V respectively. Determine the voltage across the capacitor.

  • A. 50V
  • B. 30V
  • C. 70V
  • D. 40V
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Correct Answer: Option D
Explanation

At resonance, the inductive reactance is equal to the capacitive reactance. This means that the voltage across the inductor is also equal to the voltage across the capacitor.

Therefore, the voltage across the capacitor is 40 V.


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