Basic Qualification · B-005 Basic electronics and theory · B-005-007-010
Quelle est la forme d'onde de l'électricité fournie par une prise de courant domestique?
- AOnde pulsée
- BOnde sinusoïdale
- COnde complexe
- DOnde carrée modifiée
Correct answer: B — Onde sinusoïdale. Question tirée de la banque officielle d'ISDE.
Why
Household electricity in Canada flows back and forth in a smooth, repeating curve that looks like a gentle hill followed by a gentle valley, which engineers call a sine wave. 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