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In the study of transistor as amplifier,...

In the study of transistor as amplifier, if `alpha=I_C/I_E` and `beta=I_C/I_B`, where `I_C,I_B` and `I_E` are the collector, base and emitter currents, then

A

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

B

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

C

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

D

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

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