Question Number 183521 by aurpeyz last updated on 26/Dec/22
$${When}\:{a}\:{bipolar}\:{transistor}\:{is}\:{turned}\:{on}\: \\ $$$${according}\:{to}\:{a}\:{scheme}\:{with}\:{a}\:{common}\:{base},\: \\ $$$${the}\:{current}\:{gain}\:{coefficient}\:{is}\:\alpha=\mathrm{0}.\mathrm{975}. \\ $$$${What}\:{will}\:{be}\:{the}\:{current}\:{gain}\:{of}\:{a}\:{bipolar} \\ $$$${transistor}\:{if}\:{it}\:{is}\:{turned}\:{on}\:{according}\:{to} \\ $$$${a}\:{scheme}\:{with}\:{a}\:{common}\:{emitter}? \\ $$$${a}.\:\mathrm{18}.\mathrm{5} \\ $$$${b}.\:\mathrm{81} \\ $$$${c}.\:\mathrm{25} \\ $$$${d}.\:\mathrm{39} \\ $$