Basic Qualification · B-005 Basic electronics and theory · B-005-005-006
Quelle est la résistance totale de cinq résistances de 10 ohms en série?
- A5 ohms
- B10 ohms
- C2 ohms
- D50 ohms
Correct answer: D — 50 ohms. Question tirée de la banque officielle d'ISDE.
Why
When resistors are connected in series, the electric current must flow through each one in turn, so their individual opposition to the flow simply adds up. 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