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MARCH 2024 — Physics STD 12 Science — Question

Maharashtra BoardEnglish MediumSTD 12 SciencePhysicsMARCH 20243 Marks
Question
Define the current gain $\alpha_{D C}$ and $\beta_{D C}$ for a transistor. Obtain the relation between them
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Answer

The dc common-base current ratio or current gain $\left(\alpha_{d c}\right)$ is defined as the ratio of the collector current to emitter current.
$\alpha_{dc}=\frac{I_{C}}{I_{E}}$

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