SignalPrep
Basic Qualification · B-005 Basic electronics and theory · B-005-003-009

Une résistance dans un circuit devient très chaude et commence à brûler. Cela veut dire que cette résistance dissipe trop de:

  1. Apuissance
  2. Btension
  3. Crésistance
  4. Dcourant

Correct answer: A — puissance. Question tirée de la banque officielle d'ISDE.

Why

A resistor gets hot and burns because it is turning electrical energy into heat faster than it can cool down, which is exactly what dissipating too much power means. 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

This question in English · All B-005 questions