find beta dc of silicon transistor

Discussion in 'Homework Help' started by Rail Ranger, Aug 25, 2006.

  1. Rail Ranger

    Thread Starter Member

    Aug 22, 2006
    15
    0
    attached is a doc of one of my consistent problems i face each time i take a test. the attachment is only one example.

    specifically, i'm looking for the correct solution to arrive to a beta dc of a silicon transistor. to find ib, do i use ohm's law using vbb / rb to get ib, or do i use vbe / rb to get ib, in order to use the beta formula: beta = ic / ib?

    much thanks in advance for your kind consideration.
     
  2. n9352527

    AAC Fanatic!

    Oct 14, 2005
    1,198
    4
    Ib = (Vbb - Vbe) / Rb
     
  3. Rail Ranger

    Thread Starter Member

    Aug 22, 2006
    15
    0
    Thanks, for your kind responsiveness. Much appreciated. Don't know why I didn't see that solution before.

    Once again, thank you.

    Rail
     
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