Basic Qualification · B-005 Basic electronics and theory · B-005-002-005
De cette liste, quel type de matériau permet le plus facilement le passage d'un courant électrique?
- AUn diélectrique
- BUn conducteur
- CUn isolant
- DUn semi-conducteur
Correct answer: B — Un conducteur. Question tirée de la banque officielle d'ISDE.
Why
A conductor is a material, such as copper or silver, that lets electric current flow through it easily because its atoms hold their outer electrons loosely, allowing them to move freely. 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