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What is the phase relationship between t...

What is the phase relationship between the AC input and output voltages in a common emitter amplifier ? What is the reason for the phase reversal ?

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In a common emitter amplifier, the input and output voltages are `180^(@)` out of opposite phases. The reason for this can be seen from the fact that as the input out of phase or in that as the input voltage rises. so the current increases through the base circuit.
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