Question

In the case of constant $\alpha$ and $\beta$ of a transistor :

• A. $\alpha \beta =1$
• B. $\beta >1,\alpha <1$
• C. $\alpha =\beta$
• D. $\beta <1,\alpha >1$

Answer 1

Answer: (B)

$\beta >1,\alpha <1$

In case of transistor, constant $\alpha$ is current gain in common-base configuration and constant $\beta$ is current gain in common-emitter configuration. Also $\alpha$ is always less than $1$ while $\beta$ is always greater than $1$.