Multiple choice

In a uniformly doped BJT, assume that NE, NB and NC are the emitter, base and collector dopings in atoms/cm3, respectively. If the emitter injection efficiency of the BJT is close unity, which one of the following conditions is TRUE?

  1. NE = NB = NC

  2. NE >>NB and NB > NC

  3. NE = NB and NB < NC

  4. NE < NB < NC

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation