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Pregunta 251

What is the phase angle between the voltage across and the current through a series RLC circuit if XC is 300 ohms, R is 100 ohms, and XL is 100 ohms?

  1. 63 degrees with the voltage lagging the currentRespuesta correcta
  2. 63 degrees with the voltage leading the current
  3. 27 degrees with the voltage leading the current
  4. 27 degrees with the voltage lagging the current

Explicación

The inductive and capacitive reactances leave a net reactance of −200 Ω, so the circuit is capacitive. With 100 Ω of resistance the arctangent of −200/100 is about −63°, meaning the current leads the voltage, or equivalently the voltage lags.

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Pregunta 251: What is the phase angle between the voltage across and the… · FCC Amateur Extra Class (Element 4) · Questena