Basic Qualification · B-005 Basic electronics and theory · B-005-007-005
What is the name for the distance an AC signal travels during one complete cycle?
- A Wave spread
- B Wavelength
- C Wave speed
- D Waveform
Correct answer: B — Wavelength. From the official ISED question bank, verified word for word.
Why
Wavelength is the correct term because it measures the physical distance a radio wave travels from the start of one cycle to the start of the next, much like measuring the length of a single ripple in water. 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.