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(D) In a common emitter configuration for an $n-p-n$ transistor,the input signal is applied to the base-emitter junction,and the output is taken from

Vedclass · Accepted Answer

$180$

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(D) In a common emitter configuration for an $n-p-n$ transistor,the input signal is applied to the base-emitter junction,and the output is taken from the collector-emitter junction.When the input voltage increases,the base current increases,which in turn increases the collector current.Due to the voltage drop across the load resistor $R_C$ connected to the collector,an increase in collector current leads to a decrease in the collector-emitter output voltage.Therefore,the output voltage is $180^o$ out of phase with the input voltage.

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

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