When n-p-n junction transistor is used as an | vedclass

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(C) Common Emitter Configuration:In this configuration,the emitter terminal is common to both the input and output sides of the circuit.The input sign

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input signal is applied between the base and emitter and output is obtained between collector and emitter.

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(C) Common Emitter Configuration:In this configuration,the emitter terminal is common to both the input and output sides of the circuit.The input signal is applied across the base-emitter junction.The output is taken across the collector-emitter junction.Biasing:For proper operation,the base-emitter junction should be forward-biased,not reverse-biased as mentioned in Option $B$. Therefore,Option $B$ is incorrect.Phase Relationship:The output voltage is inverted with respect to the input voltage,meaning they are $180^{\circ}$ out of phase. Hence,Option $D$ is incorrect.Impedance Characteristics:The input impedance is generally low to moderate,not high,and the output impedance is generally moderate to high. Thus,Option $A$ is incorrect.In summary,the common emitter configuration is widely used due to its ability to amplify the input signal with phase inversion,making Option $C$ the accurate description.

When $n-p-n$ junction transistor is used as an amplifier in common emitter mode,

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