# Oscillators

### Explanation of question 13

- i A crystal can operate in a series or parallel resonant mode
- ii An LC oscillator has a better frequency stability than a crystal oscillator

1. i and ii are both true
2. i is true but ii is false
3. i is false but ii is true
4. i and ii are both false

The answer is :- 2 The series and parallel capacitor means two modes ii untrue for better stability, a crystal oscillator is used.

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