Question

The relation between $\alpha and\beta$ parameters of a transistor is

• A.
• B.
• C.
• D.

Answer 1

The correct option is C

$\alpha =\frac{I_c}{I_E},\beta =\frac{I_c}{I_B}{I}_E=I_C+I_B\frac{I_E}{I_C}=1+\frac{I_B}{I_C}\frac{1}{\alpha }=1+\frac{1}{\beta }\Rightarrow \alpha =\frac{\beta }{\beta +1}$