Basic Qualification · B-005 Basic electronics and theory · B-005-001-001
Un cadran indique 3,525 mégahertz. Qu'indiquerait-il en kilohertz?
- A352,5 kHz
- B3 525 kHz
- C35,25 kHz
- D3 525 000 kHz
Correct answer: B — 3 525 kHz. Question tirée de la banque officielle d'ISDE.
Why
To change 3.525 megahertz into kilohertz, you multiply by one thousand because one megahertz equals one thousand kilohertz. 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