In n-p-n transistor, in CE configuration
(1) The emitter is heavily doped than the collector
(2) Emitter and collector can be interchanged
(3) The base region is very thin but is heavily doped
(4) The conventional current flows from base to emitter

Options

A. (1) and (2) are correct
B. (1) and (3) are correct
C. (1) and (4) are correct
D. (3) and (2) are correct

Answer

C

Explanation

In n-p-n transistor, the flow of conventional current is from base to emitter and the emitter is heavily doped compared to base and collector.
The arrow mark in the emitter side represents the flow of conventional current.