Basic Qualification · B-005 Basic electronics and theory · B-005-001-008
A current of one quarter ampere may be written as:
- A 2.5 milliamperes
- B 0.25 milliamperes
- C 250 microamperes
- D 250 milliamperes
Correct answer: D — 250 milliamperes. From the official ISED question bank, verified word for word.
Why
One quarter of an ampere equals 0.25 amperes. The full explanation — and one for every question — is in Pro.
Practise this section
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.