The typical output characteristics curve for a transistor working in the common emitter configuration is shown in the figure

Solved Physics Paper JEE 2021 Shift 2 March 18th

The estimated current gain from the figure is …………..

Answer: (200)

For common emitter configuration

\(\begin{array}{l}\beta =\frac{\Delta I_{c}}{\Delta I_{B}}= \frac{(4-2)mA}{(20-10)\mu A}= \frac{2\times 10^{-3}}{10\times 10^{-6}}= 200\end{array} \)

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