Basic Qualification · B-005 Basic electronics and theory · B-005-002-007
La lettre "R" est le symbole de:
- Al'impédance
- Bla réluctance
- Cla réactance
- Dla résistance
Correct answer: D — la résistance. Question tirée de la banque officielle d'ISDE.
Why
In any electrical circuit, "resistance" is the property that opposes the flow of electric current, and the letter "R" is the standard symbol used to represent this concept in formulas and diagrams. 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