On transistor spec sheet, the key difference between $\beta \mathrm { DC }$ and $\alpha \mathrm { DC }$ is that:
A) $\beta \mathrm { DC }$ represents $\mathrm { IE } / \mathrm { IC } ; \alpha \mathrm { DC }$ represents $\mathrm { I_B } / \mathrm { I_C }$
B) $\beta \mathrm { DC }$ represents $\mathrm { IC } / \mathrm { IB } ; \alpha \mathrm { DC }$ represents $\mathrm { I_B } / \mathrm { I } _ { \mathrm { C } }$
C) $\beta \mathrm { DC }$ represents $\mathrm { IC } / \mathrm { IB } ; \alpha \mathrm { DC }$ represents $\text { IC/IE. }$
D) $\beta \mathrm { DC }$ represents $\mathrm { IE } / \mathrm { IC } ; \alpha \mathrm { DC }$ represents $\text { IC/IE. }$

Question

Quizplus · Accepted Answer

$\beta_{DC}$ is the current gain in common emitter configuration, defined as $\mathrm { IC } / \mathrm { IB }$, while $\alpha_{DC}$ is the current gain in common base configuration, defined as $\text { IC/IE }$.

On Transistor Spec Sheet, the Key Difference Between βDC\beta \mathrm { DC }βDC

On Transistor Spec Sheet, the Key Difference Between $\beta \mathrm { DC }$