Basic Qualification · B-005 Basic electronics and theory · B-005-001-009
Combien de millivolts égalent une tension de 2 volts?
- A2 000 000 mV
- B0,002 mV
- C2 000 mV
- D0,000 002 mV
Correct answer: C — 2 000 mV. Question tirée de la banque officielle d'ISDE.
Why
Two volts equal 2 000 millivolts because the prefix "milli" means one thousandth, so you must multiply the number of volts by 1 000 to find the equivalent in millivolts. 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