JEE PHYSICS MCQ: SEMI CONDUCTOR DEVICES

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Understanding +4 | -1

In the study of transistor as an 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

View answer and explanation

Correct option: B

\beta = \frac{\alpha }{{1 - \alpha }}

Option B is correct because the relationship between α and β is given by the formula

\beta = \frac{{\alpha}}{{1 - \alpha}}

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