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The typical o...

Question

The typical output characteristics curve for a transistor working in the common emitter configuration is shown in the figure. The estimated current gain from the figure is ______.

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Solution

For common emitter configuration, current gain,

$β = \frac{Δ I_{C}}{Δ I_{B}} = \frac{(4 - 2) mA}{(20 - 10) μ A} = \frac{2}{10} \times \frac{10^{- 3}}{10^{- 6}} = 200$

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