# Amplifiers

### Explanation of question 10

Two transistors are connected in push-pull configuration. The output waveform will

- i consist only of positive half-cycles,
- ii have high second harmonic distortion

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 :- 4 Push-pull restores the complete cycle. The second harmonic is substantially reduced, but odd harmonics (as opposed to even) are still present.

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