1.

The stability factor S in a bipolar junction transistor is:

A. \(\frac{{1 + \beta }}{{1 - \beta \left( {\frac{{d{I_B}}}{{d{I_C}}}} \right)}}\)
B. \(\left( {\frac{{1 + \beta }}{{1 - \beta }}} \right)\left[ {1 - \left( {\frac{{d{I_B}}}{{d{I_C}}}} \right)} \right]\)
C. \(\left( {1 + \beta } \right)\left[ {1 - \beta \left( {\frac{{d{I_B}}}{{d{I_C}}}} \right)} \right]\)
D. \(\frac{{\beta - 1}}{{\left[ {1 - \beta \left( {\frac{{d{I_B}}}{{d{I_C}}}} \right)} \right]}}\)
Answer» B. \(\left( {\frac{{1 + \beta }}{{1 - \beta }}} \right)\left[ {1 - \left( {\frac{{d{I_B}}}{{d{I_C}}}} \right)} \right]\)


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