Basic Qualification · B-005 Basic electronics and theory · B-005-012-004
Quels sont les deux composants nécessaires pour former un circuit accordé?
- AUne résistance et un transistor
- BUn condensateur et une résistance
- CUne diode et un transistor
- DUne bobine et un condensateur
Correct answer: D — Une bobine et un condensateur. Question tirée de la banque officielle d'ISDE.
Why
A tuned circuit needs an inductor, which stores energy in a magnetic field, and a capacitor, which stores energy in an electric field. 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