Basic Qualification · B-005 Basic electronics and theory · B-005-007-008
Quelle est la signification de 60 hertz (Hz)?
- A60 mètres par seconde
- B6 000 cycles par seconde
- C60 cycles par seconde
- D6 000 mètres par seconde
Correct answer: C — 60 cycles par seconde. Question tirée de la banque officielle d'ISDE.
Why
Sixty hertz means a wave repeats its full pattern sixty times every single second, which is exactly what "60 cycles per second" describes. The full explanation — and one for every question — is in Pro.
Practise this section
Basic electronics and theory is section B-005 of the Basic exam: The theory: Ohm's law, power, series and parallel circuits, AC and DC, frequency and wavelength, decibels, and the metric prefixes the exam leans on.
Drill B-005 — free, no account