Basic Qualification · B-005 Basic electronics and theory · B-005-001-006
A kilohm is:
- A 0.001 ohms
- B 10 ohms
- C 1000 ohms
- D 0.1 ohms
Correct answer: C — 1000 ohms. From the official ISED question bank, verified word for word.
Why
A kilohm equals 1000 ohms because the prefix "kilo" always means one thousand in the metric system, just as a kilometre is 1000 metres. 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.