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Homework Help: Npn transistor

  1. May 22, 2008 #1
    1. The problem statement, all variables and given/known data
    circuit diagram showing what has been identified as an NPN transistor with the collector and base connected to neg and emitter conected to pos. The base is also switched by a photodiode and the emitter is supplying a light bulb.Question asks when will the light come on.Can an NPN transistor function with the source terminals reversed like this?


    2. Relevant equations



    3. The attempt at a solution
     
  2. jcsd
  3. May 22, 2008 #2
    circuit
     

    Attached Files:

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