Question

In a common base mode of a transistor, the collector current is $5.488\, mA$ for an emitter current of $5.60\, mA$. The value of the base current amplification factor $(\beta)$ will be

• A. $49$
• B. $50$
• C. $51$
• D. $48$

Answer 1

Answer: (A)

$49$

Answer 2

$I_{c}=5.488\,mA, I_{c}=5.6\,mA$
$\alpha=\frac{I_{c}}{I_{c}}$
$\alpha=\frac{5.488}{5.6}$
$\beta=\frac{\alpha}{\left(1-\alpha\right)}=49$