Basic Qualification · B-005 Basic electronics and theory · B-005-002-001
Which of these groups lists three good electrical conductors?
- A Gold, silver and aluminum
- B Gold, silver and wood
- C Copper, aluminum and paper
- D Copper, gold and mica
Correct answer: A — Gold, silver and aluminum. From the official ISED question bank, verified word for word.
Why
Gold, silver and aluminum are all metals that allow electricity to flow through them easily because their atoms release electrons 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.