QuestenaПрактика, после которой понятно, что повторить
Вопрос 270

What is the phase relationship between current and voltage for reactive power?

  1. They are out of phase
  2. They are in phase
  3. They are 90 degrees out of phaseПравильный ответ
  4. They are 45 degrees out of phase

Объяснение

Reactive power is the portion of power that flows back and forth without being consumed, and it exists only where the current is in quadrature with the voltage. Pure inductance and pure capacitance both produce that 90-degree relationship.

Продолжить работу с тестом

Начать тренировку
Вопрос 270: What is the phase relationship between current and voltage… · FCC Amateur Extra Class (Element 4) · Questena