A bypass capacitor is placed across the emitter resistor in a voltage- divider biased common- emitter amplifier circuit. This will
A)place the emitter at ac ground.
B)reduce the emitter's dc voltage to zero.
C)shift the Q- point on the dc load line.
D)All of the above.

Question

Quizplus · Accepted Answer

Placing a bypass capacitor across the emitter resistor in a common-emitter amplifier effectively grounds the emitter for AC signals, thereby increasing the amplifier's AC gain without affecting the DC biasing conditions (Q-point). It does not reduce the emitter's DC voltage to zero nor shift the Q-point on the DC load line.

A Bypass Capacitor Is Placed Across the Emitter Resistor in a Voltage-