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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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Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
Join your school's WhatsApp group
NECO June/July 2024 - Get offline past questions & answers - Download objective & theory, all in one app 48789
Join your school's WhatsApp group
NECO June/July 2024 - Get offline past questions & answers - Download objective & theory, all in one app 48789
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts