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Pregunta 199

What is impedance?

  1. The opposition to AC current flowRespuesta correcta
  2. The inverse of resistance
  3. The inverse of reactance
  4. The power handling capability of a component

Explicación

Impedance is the total opposition a circuit presents to alternating current, taking in both resistance and reactance. The inverse of resistance is conductance, which is a different quantity altogether.

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Pregunta 199: What is impedance? · FCC Technician Class (Element 2) · Questena