Explain how the input and output voltages are out of phase by 180o for a common-emitter transistor amplifier.

Asked by Topperlearning User | 24th Jun, 2014, 02:36: PM

Expert Answer:

In common emitter transistor amplifier, the input (base-emitter) circuit is forward biased and the output(collector-emitter) circuit is reversed biased.

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Hence in a common emitter amplifier, the output voltage is 180° out of phase with the input voltage.

Answered by  | 24th Jun, 2014, 04:36: PM