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Question Number 183521 by aurpeyz last updated on 26/Dec/22

When a bipolar transistor is turned on   according to a scheme with a common base,   the current gain coefficient is α=0.975.  What will be the current gain of a bipolar  transistor if it is turned on according to  a scheme with a common emitter?  a. 18.5  b. 81  c. 25  d. 39

$${When}\:{a}\:{bipolar}\:{transistor}\:{is}\:{turned}\:{on}\: \\ $$$${according}\:{to}\:{a}\:{scheme}\:{with}\:{a}\:{common}\:{base},\: \\ $$$${the}\:{current}\:{gain}\:{coefficient}\:{is}\:\alpha=\mathrm{0}.\mathrm{975}. \\ $$$${What}\:{will}\:{be}\:{the}\:{current}\:{gain}\:{of}\:{a}\:{bipolar} \\ $$$${transistor}\:{if}\:{it}\:{is}\:{turned}\:{on}\:{according}\:{to} \\ $$$${a}\:{scheme}\:{with}\:{a}\:{common}\:{emitter}? \\ $$$${a}.\:\mathrm{18}.\mathrm{5} \\ $$$${b}.\:\mathrm{81} \\ $$$${c}.\:\mathrm{25} \\ $$$${d}.\:\mathrm{39} \\ $$

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