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Homework Help: Common-base config

  1. Oct 7, 2006 #1
    Hey, I'm currently stuck with this question. There are several parts to this question.

    http://img373.imageshack.us/img373/8480/questionscj3.png [Broken]

    I know alpha should be around .9-1 but I don't think I know the formula for IB.
    Last edited by a moderator: May 2, 2017
  2. jcsd
  3. Oct 7, 2006 #2


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    In part A) Ie = 4 and and Ic = 3.992

    What does Ib have to be?
    Last edited by a moderator: May 2, 2017
  4. Oct 10, 2006 #3


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    Use KCL for the transistor. What are the currents entering and leaving it.
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