Basic Qualification · B-005 Basic electronics and theory · B-005-003-007
Quelles sont les deux grandeurs que l'on doit multiplier entre elles pour obtenir la puissance?
- ALa tension et le courant
- BL'inductance et la capacité
- CLa tension et l'inductance
- DLa résistance et la capacité
Correct answer: A — La tension et le courant. Question tirée de la banque officielle d'ISDE.
Why
Power measures how fast electrical energy is used, and you find it by multiplying voltage, which is the electrical pressure, by current, which is the flow of electrons. 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