First slide

Transistor

Question

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

Moderate

A

only (a) and (b) are correct
B

only (a) and (c) are correct
C

only (a) and (d) are correct
D

only (b) and (c) are correct

Solution

In a transistor the emitter has to be heavily doped, base must be sparingly doped and collector must be moderately doped and also have a large area. so it is not possible to interchange collector and emitter.

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