Question

In an n-p-n transistor, the majority of carriers in the emitter and collector are

Answer 1

NPN transistors

1. A Negative Positive Negative Transistor is the complete form of the NPN transistor.
2. Two diodes are connected to either side of an n-p-n transistor. An emitter-base diode is a diode on the left. A collector-based diode is an emitter on the right side. The emitter is substantially doped, and the collector is moderately doped, whereas the base is mildly doped.
3. Forward bias is present in the emitter and base, while reverse bias is present in the collector and base. The collector region receives the current from the emitter and the base.
4. The high potential attracts the electrons at the collector because the collector area is reverse biassed. The quantity of current that passes from the emitter to the collector is controlled by the base region.
5. Electrons make up the bulk of charge carriers in n-type semiconductors, while holes make up the majority of charge carriers in p-type semiconductors.
6. That is the reason, electrons carry the current from emitter to base and collector. This transistor is a combination of n-type, p-type, and n-type semiconductors.
7. Demonstrating with the help of a diagram

The NPN transistor's emitter is n-type, as we can see from the diagram. As a result, electrons are the most common charge carriers in an NPN transistor's emitter.