Advanced Qualification · A-002 Advanced components and circuits · A-002-001-011
A semiconductor is said to be doped when it has added to it small quantities of:
- A impurities
- B protons
- C ions
- D electrons
Correct answer: A — impurities. From the official ISED question bank, verified word for word.
Why
Doping happens when tiny amounts of impurities are mixed into a pure semiconductor like silicon to change how well it conducts electricity. 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.