By Team Aakash Byju's | 20th November 2022

Select the Correct Option About Doping in a Transistor

Your options are:

Base is more heavily doped than the collector

A.

Both the emitter and the collector are equally doped

B.

The base is made very thin and is lightly doped

C.

Collector is more heavily doped than the emitter

D.

The correct answer is C. The base is made very      thin and is lightly      doped.

Detailed Explanation

Arrow

Doping is a mechanism of increasing the conductivity of any metal by adding impurities.

The emitter in a transistor provides the maximum charge carriers for the flow of current. Thus it is heavily doped.

The collector collects the charges released by the emitter. Hence, it is made larger in size and is moderately doped.

C

E

E

C

NPN Transistor

PNP Transistor

Collector

Collector

Emitter

Emitter

The base of a transistor is helpful for the interaction between the emitter and the collector.

Thus the base passes the charge carriers released by the emitter to the collector. Hence, it is made very thin and is doped lightly.

C

E

E

C

NPN Transistor

PNP Transistor

Collector

Collector

Emitter

Emitter