Advanced Qualification · A-002 Advanced components and circuits · A-002-011-009
Which of the following properties does not apply to a crystal when used in an oscillator circuit?
- A Good frequency stability
- B Very low noise because of high Q
- C Good frequency accuracy
- D High power output
Correct answer: D — High power output. From the official ISED question bank, verified word for word.
Why
A crystal oscillator acts like a very precise tuning fork that vibrates at one exact frequency, but it is built to handle only tiny amounts of electrical energy. 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.