The voltage gain of a common-collector amplifier is ________.
A) infinite
B) 1
C) 10
D) 100

Question

Quizplus · Accepted Answer

The voltage gain of a common-collector amplifier, also known as an emitter follower, is approximately 1. This is because the output voltage (taken at the emitter) follows the input voltage (taken at the base) minus the voltage drop across the base-emitter junction of the transistor. Therefore, the output voltage is slightly lower than the input voltage, resulting in a voltage gain of approximately 1.

The Voltage Gain of a Common-Collector Amplifier Is ________