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Current amplification factor of a common...

Current amplification factor of a common base configuration is `0.88`. Find the value of base current when the emitter current is `1 m A`.

A

`0.12 mA`

B

`0.1mA`

C

`0.5mA`

D

`1.2mA`

Text Solution

Verified by Experts

The correct Answer is:
A
In a common-base arrangement the current amplification factor.
`alpha=(I_(C))/(I_(E)) rArr I_(C)=alphaI_(E)=0.88xx1=0.88mA and I_(B)=I_(E)-I_(C)`
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