QuestenaПрактика, после которой понятно, что повторить
Вопрос 228

What value of an AC signal produces the same power dissipation in a resistor as a DC voltage of the same value?

  1. The peak-to-peak value
  2. The peak value
  3. The RMS valueПравильный ответ
  4. The reciprocal of the RMS value

Объяснение

The RMS value is defined precisely as the AC value that heats a resistor exactly as much as the same numeric DC value would. Peak and peak-to-peak values are larger than RMS for a sine wave and would overstate the power.

Продолжить работу с тестом

Начать тренировку
Вопрос 228: What value of an AC signal produces the same power… · FCC General Class (Element 3) · Questena