The main difference between an NPN and PNP transistor amplifier is that
A)PNP transistors cannot amplify sine waves.
B)PNP transistors require opposite bias polarities as compared to NPN.
C)PNP transistors need more heat sinking.
D)NPN transistors are linear amplifiers, while PNP amplifiers are nonlinear.

Question

Quizplus · Accepted Answer

The main difference between NPN and PNP transistor amplifiers lies in their biasing requirements. NPN transistors require a positive voltage to the collector and a negative voltage to the emitter, while PNP transistors require the opposite, with a negative voltage to the collector and a positive voltage to the emitter. This difference in bias polarities is fundamental to their operation.

The Main Difference Between an NPN and PNP Transistor Amplifier