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GATE ECE 1994 | Question-53

(A) The current gain of a $\text{BJT}$ will be increased if
(B) The current gain of a $\text{BJT}$ will be reduced if
(C) The break-down voltage of a $\text{BJT}$ will be reduced if

  1. The collector doping concentration is increased.
  2. The base width is reduced.
  3. The emitter doping concentration to base doping concentration ratio is reduced.
  4. The base doping concentration is increased keeping the ratio of the emitter doping concentration to base doping concentration, constant.
  5. The collector doping concentration is reduced.
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