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Pregunta 276

What happens to reactive power in ideal inductors and capacitors?

  1. It is dissipated as heat in the circuit
  2. Energy is stored in magnetic or electric fields, but power is not dissipatedRespuesta correcta
  3. It is canceled by Coulomb forces in the capacitor and inductor
  4. It is dissipated in the formation of inductive and capacitive fields

Explicación

An ideal inductor stores energy in its magnetic field and an ideal capacitor stores it in its electric field, and each returns that energy to the circuit on the following quarter cycle. Because the energy comes back rather than turning into heat, the average power dissipated is zero.

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Pregunta 276: What happens to reactive power in ideal inductors and… · FCC Amateur Extra Class (Element 4) · Questena