The unbypassed emitter resistance is called a feedback resistor because it has an ac voltage across it that opposes changes in voltage gain.

Question

Quizplus · Accepted Answer

This statement is true. The unbypassed emitter resistance, also known as the emitter degeneration resistor, creates a negative feedback loop in an amplifier circuit. This is because any changes in the output voltage of the amplifier (caused by changes in input voltage or changes in the amplification factor) will cause a corresponding change in the voltage drop across the emitter resistor. This change in voltage opposes the original change in voltage and helps to stabilize the voltage gain of the amplifier.

The Unbypassed Emitter Resistance Is Called a Feedback Resistor Because