In a common emitter amplifier circuit using an n-p-n transistor, the phase difference between the input and the output voltages will be :
450
900
1350
1800
As we learnt in
Amplifier -
Transistor is used as an amplifier
- wherein
in such circuit output is amplified as compared to input .
In common emitter amplifier, it will be 180o out of phase with the input voltage waveform. Thus the common emitter amplifier is called an inverting amplifier circuit.
Correct option is 4.
Option 1)
450
This is an incorrect option.
Option 2)
900
This is an incorrect option.
Option 3)
1350
This is an incorrect option.
Option 4)
1800
This is the correct option.
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