Basic Qualification · B-005 Basic electronics and theory · B-005-004-011
Quelle est la résistance d'un circuit s'il consomme 300 milliampères d'une batterie de 3 volts?
- A5 ohms
- B3 ohms
- C10 ohms
- D9 ohms
Correct answer: C — 10 ohms. Question tirée de la banque officielle d'ISDE.
Why
To find the resistance, you must first change 300 milliamperes into 0.3 amperes, then divide the 3-volt battery voltage by this current. 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