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The current gain of a transistor in comm...

The current gain of a transistor in common base and common-emitter configurations called `alpha ` and ` beta ` are related as

A

`(1)/( alpha) - (1)/( beta) =1`

B

`(1)/( alpha) +(1)/(beta) =1`

C

` alpha = ( beta )/( 1 + beta)`

D

both 1 & 3

Text Solution

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The correct Answer is:
D
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