The same input voltage that is applied to each base of a differential amplifier is called
A) complimentary signal.
B) nulling signal.
C) common-mode signal.
D) single-ended signal.

Question

Quizplus · Accepted Answer

The common-mode signal is the same input voltage that is applied to each base of a differential amplifier. This voltage is common to both inputs and is rejected by the differential amplifier, which only amplifies the difference between the two input voltages. Thus, the correct answer is C, the common-mode signal. The other choices are not relevant to the described situation.

The Same Input Voltage That Is Applied to Each Base