Advanced Qualification · A-002 Advanced components and circuits · A-002-008-007
What are the advantages of using an op-amp instead of LC elements in an audio filter?
- AOp-amps are more rugged and can withstand more abuse than can LC elements
- BOp-amps are available in more styles and types than are LC elements
- COp-amps are fixed at one frequency
- DOp-amps exhibit gain rather than insertion loss
Correct answer: D — Op-amps exhibit gain rather than insertion loss. From the official ISED question bank, verified word for word.
Why
An operational amplifier, or op-amp, is an active component that uses external power to boost signal strength, meaning it adds gain to the circuit. The full explanation — and one for every question — is in Pro.
Practise this section
Advanced components and circuits is section A-002 of the Advanced exam: Advanced components and circuits: semiconductors, amplifier classes, oscillators, mixers, filters and digital logic.
Drill A-002 — free, no account