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Assertion : In a transistor the base is ...

Assertion : In a transistor the base is made thin.
Reason: A thin base makes the transistor stable.

A

If both assertion and reason are true and reason is the correct explanation of assertion.

B

If both assertion and reason are truw but reason is not correct explanation of assertion

C

If assertion is true but reason is false

D

If both assertion and reason are false.

Text Solution

Verified by Experts

The correct Answer is:
C
The base is lightly doped and very thin,this constructional feature is key of transistor action due to which only few holes(less than 5%) are able to combine with the electron in base region.Most of the holes coming from the emitter are able to diffuse through the base region to the collector region.
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