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Homework Help: Transistor Circuits

  1. Feb 21, 2016 #1
    1. The problem statement, all variables and given/known data
    Calculate the max collector current.

    2. Relevant equations

    3. The attempt at a solution
    I'm not sure how to find the max collector current. Don't I need the source voltage to find my Ib and then use that to find my Ic? Is there another way of finding Ic_max? Also, are B,C,D done correctly? I feel like D is wrong because of the huge voltage. (sorry about the bad scan. Had to use phone)
    New Doc 12_1.jpg
  2. jcsd
  3. Feb 21, 2016 #2

    rude man

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    a. it says max POSSIBLE collector current. how high can Vce go?
    b. & c. OK
    d. can Ic exceed 10V/1K?
  4. Feb 21, 2016 #3
    Just noticed the 2A error in my calculation for D. Should be 8V for Vce. And for A I'm not sure. I think the max possible collector current would happen in saturation mode. So does that mean Vce=Vce(sat)? So Vce would be 0.2V?
  5. Feb 21, 2016 #4
    Icmax=(10V-0.2V)/1000ohms = 9.8mA. Never mind. Got it :)
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