Basic Qualification · B-004 Circuit components · B-004-006-008
Comment la valeur ohmique d'une résistance change-t-elle avec l'augmentation de la température ambiante?
- ASa valeur reste constante
- BSa valeur diminue
- CCela dépend de son coefficient de température
- DSa valeur augmente
Correct answer: C — Cela dépend de son coefficient de température. Question tirée de la banque officielle d'ISDE.
Why
The answer depends on the temperature coefficient because this value describes how a specific resistor's material reacts to heat; some materials, like carbon, lower their resistance when warm, while others, like certain metals, raise it. The full explanation — and one for every question — is in Pro.
Practise this section
Circuit components is section B-004 of the Basic exam: The parts inside the box: resistors, capacitors, inductors, diodes, transistors, tubes and what each does in a circuit.
Drill B-004 — free, no account