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  • In a common base circuit at , a change in emitter current from 12.0 mA to 18.5 mA produces a

In a common base circuit at \mathrm{Vc=3V}, a change in emitter current from 12.0 mA to 18.5 mA produces a change in collector current from 11.8 to 17.4 mA. The current gain will be:

Option: 1

0.9521


Option: 2

0.8615


Option: 3

0.7351


Option: 4

None of these


Answers (1)

best_answer

\mathrm{\alpha=\left(\frac{\Delta \mathrm{I}_c}{\Delta \mathrm{I}_{\mathrm{e}}}\right)_{\mathrm{V}_{\mathrm{e}}}=\frac{17.4-11.8}{18.5-12.0}=\frac{5.6}{6.5}=0.8615}

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Rishi

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