Advanced Qualification · A-002 Advanced components and circuits · A-002-001-009
Which of the following materials is used to make a semiconductor?
- A Copper
- B Sulphur
- C Silicon
- D Tantalum
Correct answer: C — Silicon. From the official ISED question bank, verified word for word.
Why
Silicon is the correct choice because it is a semiconductor, a material that conducts electricity better than an insulator but not as well as a metal, making it ideal for building transistors and diodes. The full explanation — and one for every question — is in Pro.
Practise this section
Advanced components and circuits: semiconductors, amplifier classes, oscillators, mixers, filters and digital logic.