Complete the following statement: The main difference between an npn transistor and a pnp transistor is that
A)the bias voltages are reversed.
B)they are made from different materials.
C)one is a bipolar transistor and the other is not.
D)one conducts electricity and the other does not.
E)the current directions are the same while the voltages are reversed.

Question

Quizplus · Accepted Answer

The main difference between an npn transistor and a pnp transistor is the direction of the flow of current and biasing of the junctions. In an npn transistor, current flows from the collector to the emitter, while in a pnp transistor, current flows from the emitter to the collector. This means that for an npn transistor to conduct, a positive voltage must be applied to the base, while for a pnp transistor to conduct, a negative voltage must be applied to the base. Hence, the bias voltages are reversed between an npn and pnp transistor.

Complete the Following Statement: the Main Difference Between an Npn