Answer :
Answer:
Explanation:
Emitter Region:
The emitter is heavily doped to enhance its efficiency in transferring majority carriers (electrons for NPN and holes for PNP) to the base region.
These majority carriers flow across the emitter-base junction and become minority carriers in the base.
Collector Region:
The collector region is also heavily doped, but its primary purpose is to collect the majority carriers that pass through the base.
The high doping ratio of the emitter and collector regions ensures that most of the carriers injected into the emitter-base junction come from the emitter itself.
As a result, the collector-base junction remains reverse biased, allowing efficient collection of carriers.
In summary, most of the majority carriers from the emitter pass through the base region to reach the collector, contributing to the transistor’s operation 12.