In a common emitter amplifier circuit using an n-p-n transistor

• Electronic Devices

In a common emitter amplifier circuit using an n-p-n transistor, the phase difference between the input and the output voltages will be:

1. 180°
2. 45°
3. 90°
4. 135°

Solution

In common emitter amplifier circuit the output voltage is out of phase w.r.t. input voltage.

The correct option is A.