1) 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 (β) will be A) 49 B) 50 C) 51 D) 48 Answer: Option AExplanation:Ic = 5.488mA Ie = 5.6mA $\alpha = \frac{I_{c}}{I_{e}}$ = $\frac{5.488}{5.6}$ $\beta = \frac{\alpha}{\left(1 - \alpha\right)}$ = 49
