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For a transistor a and beta are given a...

For a transistor a and `beta` are given as `alpha = (I _(C))/(I _(E)) and beta = ( I _(C))/(I _(B)).` Then the correct relation between `alpha` and `beta` will be :

A

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

B

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

C

`alpha beta =1`

D

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

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