Basic Qualification · B-005 Basic electronics and theory · B-005-002-005
Which of these types of materials readily allows the flow of electric current?
- A Insulator
- B Semiconductor
- C Dielectric
- D Conductor
Correct answer: D — Conductor. From the official ISED question bank, verified word for word.
Why
A conductor is a material, such as copper or silver, that lets electric current flow through it easily because its atoms hold their outer electrons loosely, allowing them to move freely. 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.