Advanced Qualification · A-002 Advanced components and circuits · A-002-011-005
A quartz crystal filter is superior to an LC filter for narrow bandpass applications because of the:
- A crystal's low Q
- B LC circuit's high Q
- C crystal's simplicity
- D crystal's high Q
Correct answer: D — crystal's high Q. From the official ISED question bank, verified word for word.
Why
A quartz crystal filter excels at creating narrow bandpass applications because the crystal possesses a very high Q, which stands for quality factor. 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.