Physics - Semiconductors Question with Solution | TestHub

The ratio of collector current to emitter current is given by $\alpha$.

$\alpha =\frac{I_C}{I_E}=0.96$

The current gain $\beta$ of a common emitter amplifier is related to $\alpha$ by the formula:

$\beta =\frac{\alpha }{1-\alpha }$

Substituting the value of $\alpha$:

$\beta =\frac{0.96}{1-0.96}$

$\beta =\frac{0.96}{0.04}=24$

Answer: 24