Question

For a transistor the value of $\alpha$ is $0.9$. Its $\beta$ value is

• A. $9$
• B. $0.9$
• C. $0.09$
• D. $90$

Answer 1

The correct option is A $9$

For transistors:
$\beta =\frac{\alpha }{1-\alpha }$

$\beta =\frac{0.9}{1-0.9}=9$ ....... ($\alpha =0.9$ given)