Basic Qualification · B-005 Basic electronics and theory · B-005-004-008
Une résistance de 30 ohms est branchée aux bornes d'une batterie de 6 volts. Quel courant y circule?
- A0,2 ampère
- B2 ampères
- C0,5 ampère
- D0,005 ampère
Correct answer: A — 0,2 ampère. Question tirée de la banque officielle d'ISDE.
Why
To find the current, you divide the voltage by the resistance, which means taking 6 volts and dividing by 30 ohms. 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