An $n-p-n$ transistor is biased to work as an amplifier. Which of the following statements is $NOT$ correct?

  • A
    The electrons go from emitter region to base region.
  • B
    The holes go from base region to collector region.
  • C
    The electrons go from base region to collector region.
  • D
    The electrons go from collector region to base region.

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In the study of a transistor as an amplifier,the ratio of collector current to emitter current is $0.98$. Then,the ratio of collector current to base current will be:

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For a common base transistor,the current gain is $\alpha = 0.98$. To produce a change of $2 \ mA$ in the emitter current,the change in the base current must be ......... $mA$.

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