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NPN question typo or my misunderstanding

  1. Apr 14, 2012 #1
    Ok so I'm reviewing npn transistors and here is what I am looking at

    http://postimage.org/image/sdywponvv/ [Broken]

    Now the book I bought says Ib = (VE + 0.6V)/R1
    I have no idea why it would be that

    Isn't it suppose to be

    (Vcc -0.6V)/R1 for Ib

    The transistor is definately on as emitter is grounded
    and it says that there isn't too big of a voltage drop over the collector side light bulb so it should be in linear region

    So Typo or am I misunderstanding something
    Last edited by a moderator: May 5, 2017
  2. jcsd
  3. Apr 14, 2012 #2
    You are right.
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