QuestenaUn entraînement qui indique quoi revoir ensuite
RechercheCréer un test
Question 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 increasesBonne réponse

Explication

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.

Continuer avec ce test

Commencer l’entraînement
Comprendre ce thème (≈7 min)Retour au test