The terms common-emitter and common-collector mean that:
A)one of the leads is a common DC bias point.
B)one of the leads is a common input signal point.
C)one of the leads is a common reference to the other two leads.
D)all of these.

Question

Quizplus · Accepted Answer

In a common-emitter configuration, the emitter is the common DC bias point, the base is the input signal point, and the collector is the output. In a common-collector configuration, the collector is the common DC bias point, the base is the input signal point, and the emitter is the output. Therefore, both choices A and B are correct. Additionally, in both configurations, one of the leads is a common reference to the other two leads (i.e., the emitter in a common-emitter configuration and the collector in a common-collector configuration). Therefore, choice C is also correct, and the best choice is D.

The Terms Common-Emitter and Common-Collector Mean That