Basic Qualification · B-005 Basic electronics and theory · B-005-013-004
Quel est le bon instrument pour mesurer le courant de l'étage final d'un émetteur?
- AUn ohmmètre
- BUn wattmètre
- CUn voltmètre
- DUn ampèremètre
Correct answer: D — Un ampèremètre. Question tirée de la banque officielle d'ISDE.
Why
An ammeter is the right tool because it measures electric current, which is the flow of electrons through a circuit, and the question specifically asks for the current drawn by the final power amplifier. 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