bjt

Discussion in 'Homework Help' started by alieve, Oct 5, 2009.

  1. alieve

    Thread Starter New Member

    Oct 5, 2009
    2
    0
    i have some basic questions plz help.


    1. under what factor bjt amplify a signal? or what is the cause of amplification of signal by the bjt amp?


    2. during biasing an amp we bias base emitter junction farword and base collector junction reverse. my question is during operation "why current flow in base collector junction?" when it is reverse bias



    plz hlp
     
  2. beenthere

    Retired Moderator

    Apr 20, 2004
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  3. hgmjr

    Moderator

    Jan 28, 2005
    9,030
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    I moved this thread to the Homework section since it has all of the earmarks of a class assignment.

    hgmjr
     
  4. mik3

    Senior Member

    Feb 4, 2008
    4,846
    63
    In simple terms you can say that the collector is more positive than the base and it attracts the electrons from the base, thus current flows.
     
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