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Frage 214

How does an inductor react to AC?

  1. As the frequency of the applied AC increases, the reactance decreases
  2. As the amplitude of the applied AC increases, the reactance increases
  3. As the amplitude of the applied AC increases, the reactance decreases
  4. As the frequency of the applied AC increases, the reactance increasesRichtige Antwort

Erklärung

Inductive reactance is directly proportional to frequency, so raising the frequency raises the reactance. Signal amplitude does not appear in the formula at all, so the amplitude choices are wrong.

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Frage 214: How does an inductor react to AC? · FCC General Class (Element 3) · Questena