Voltage-divider bias produces a fixed value of emitter current that results in a stable operating point that is
A) always located at cutoff.
B) always located at saturation.
C) dependent on the current gain.
D) independent of the current gain.

Question

Quizplus · Accepted Answer

Voltage-divider bias produces a fixed value of emitter current that is independent of the current gain. This is because the base voltage is determined by the voltage divider, and therefore the emitter voltage and current are determined by the bias voltage and the emitter resistor. The current gain only affects the collector current, but not the emitter current, which is the one determined by the bias circuit. Therefore, the operating point is stable and does not depend on the current gain.

Voltage-Divider Bias Produces a Fixed Value of Emitter Current That