Question

The value of $\beta$ of a transistor is $19$. The value of $\alpha$ will be ___________.

• A. $0.93$
• B. $0.98$
• C. $0.99$
• D. $0.95$

Answer 1

The correct option is D $0.95$

Given : $\beta =19$
Using $\alpha =\frac{\beta }{1+\beta }$
$\therefore$ $\alpha =\frac{19}{1+19}=0.95$
Correct answer is option D.