Advanced Qualification · A-002 Advanced components and circuits · A-002-008-011
What term is most appropriate for a high gain, direct-coupled differential amplifier whose characteristics are determined by components mounted externally?
- A Operational amplifier
- B Difference amplifier
- C High gain audio amplifier
- D Summing amplifier
Correct answer: A — Operational amplifier. From the official ISED question bank, verified word for word.
Why
An operational amplifier is a high-gain, direct-coupled differential amplifier where external components like resistors and capacitors set its specific behaviour, such as gain or frequency response. 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.