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Physics
Which of the following relations is correct for transistor ?
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Q. Which of the following relations is correct for transistor ?
UP CPMT
UP CPMT 2014
A
$\beta=\frac{\alpha}{1+\alpha}$
B
$\alpha=\frac{\beta}{1-\beta}$
C
$\alpha=\frac{1+\beta}{\beta}$
D
$\beta=\frac{\alpha}{1-\alpha}$
Solution:
The relation between $\alpha$ and $\beta$ is given by
$\beta = \frac{\alpha}{1-\alpha}$ or $ \alpha = \frac{\beta}{1+\beta}$