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

  • Option 1)

    450

  • Option 2)

    900

  • Option 3)

    1350

  • Option 4)

    1800

 

Answers (1)

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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